tektronix :: tm500 :: 070-1583-01 PG505 Dec81

Tektronix

COMMITTED TO EXCELLENCE

Tektronix, Inc.
P.O. Box 500
Beaverton, Oregon

070-1583-01
Product Group 75

97077

PLEASE CHECK FOR CHANGE INFORMATION
AT THE REAR OF THIS MANUAL.

INSTRUCTION MANUAL

Serial Number

First Printing SEP 1973
Revised DEC 1981

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Copyright© 1973,1981 Tektronix, Inc. Ail rights reserved.
Contents of this publication may not be reproduced in
anyform without the written permission of Tektronix, inc.

Products of -lektronix, Inc. and it* « ubsJdtarie«|ie
covered by U.S. and foreign paten^^nd/Of pertpijj *
patents. '*'"' 9 '

TEKTROMx|tEK, Scftp-MOBILEi

.fggd* trademarks off;rTektronixf}

rts'a registered trademark of
Umited.

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Printed in U.S.A. Specification and price change
privileges are reserved.

PG505

TABLE OF CONTENTS

Page
LIST OF ILLUSTRATIONS ii

OPERATOR SAFETY SUMMARY Mi

SERVICE SAFETY SUMMARY v

SECTION 1 Specification 1-1

SECTION 2 Operating Instructions 2-1

WAR

N1NG 1

THE FOLLOWING SERVICE INSTRUCTIONS ARE FOR USE BY QUALIFIED
PERSONNEL ONLY. TO AVOID PERSONAL INJURY, DO NOT PERFORM
ANY SERVICING OTHER THAN THAT CONTAINED IN OPERATING
INSTRUCTIONS UNLESS YOU ARE QUALIFIED TO DO SO.

SECTION 3

Theory of Operation 3-1

SECTION 4 Calibration Procedure 4-1

Performance Check 4-1

Adjustment Procedure 4-6

SECTION 5

Maintenance 5-1

SECTION 6

Options 6-1

SECTION 7

Replaceable Electrical Parts 7-1

SECTION 8

Diagrams and Illustrations 8-1

SECTION 9

Replaceable Mechanical Parts 9-1

REV C JAN 1981

PG505

LIST OF ILLUSTRATIONS

No. Page

Frontis PG 505 Pulse Generator vi

2-1 PG 505 Installation and Removal 2-1

2-2 Controls and Connectors 2-2

2-3 Pulse duration and period being controlled by various external signals 2-4

2-4 Start of output pulse being controlled by selected pick-off voltage point on ramp

signal 2-5

2-5 Locations for custom period and pulse duration capacitors 2-5

2-6 Pulse characteristics 2-6

4-1 Rise time check 4-3

4-2 Pulse period and duration check 4-4

4-3 Output delay range check 4-5

5-1 Semiconductor device lead configurations found in the TM500 family 5-4

@ JAN 1981

PG505

OPERATORS SAFETY SUMMARY

The general safety information in this part of the summary
is for both operating and servicing personnel. Specific
warnings and cautions will be found throughout the
manual where they apply, but may not appear in this
summary.

Terms In This Manual

CAUTION statements identify conditions or practicesthat
could result in damagetothe equipment or other property.

WARNING statements identify conditions or practices
that could result in personal injury or loss of life.

Terms As Marked on Equipment

CAUTION indicates a personal injury hazard not im-
mediately accessible as one reads the marking, or a
hazard to property including the equipment itself.

DANGER indicates a personal injury hazard immediately
accessible as one reads the marking.

and ground. A protective ground connection by wayof the
grounding conductor in the power cord is essential for
safe operation.

Grounding the Product

This product is grounded through the grounding conduc-
tor of the power cord. To avoid electrical shock, plug the
power cord into a properly wired receptacle before
connecting to the product input or output terminals. A
protective ground connection by way of the grounding
conductor in the power cord is essential for safe opera-
tion.

Danger Arising From Loss of Ground

Upon loss of the protective-ground connection, all
accessible conductive parts (including knobs and con-
trols that may appear to be insulating) can render an
electric shock.

Symbols In This Manual

This symbol indicates where applicable
l\ cautionary or other information is to be
found.

A

Symbols As Marked on Equipment

y DANGER — High voltage.

Ph Protective ground (earth) terminal.
/K ATTENTION — refer to manual.

Use the Proper Fuse

To avoid fire hazard, use only the fuse of correct type,
voltage rating and current rating as specified in the parts
list for your product.

Refer fuse replacement to qualified service personnel.

Do Not Operate in Explosive Atmospheres

To avoid explosion, do not operate this product in an
explosive atmosphere unless it has been specifically
certified for such operation.

Power Source

This product is intended to operate from a power source
that will not apply more than 250 volts rms between the
supply conductors or between either supply conductor

Do Not Operate Without Covers

To avoid personal injury, do not operate this product
without covers or panels installed. Do not apply power to
the plug-in via a plug-in extender.

@ JAN 1981

III

PG 505

SERVICE SAFETY SUMMARY

FOR QUALIFIED SERVICE PERSONNEL ONLY

Refer also to the preceding Operators Safety Summary.

Do Not Service Alone

Do not perform internal service or adjustment of this
product unless another person capable of rendering first
aid and resuscitation is present.

Use Care When Servicing With Power On

Dangerous voltages may exist at several points in this
product. To avoid personal injury, do not touch exposed
connections and components while power is on.

Disconnect power before removing protective panels,
soldering, or replacing components.

Power Source

This product is intended to operate from a power source
that will not apply more than 250 volts rms between the
supply conductors or between either supply conductor
and ground. A protective ground connection by way of the
grounding conductor in the power cord is essential for
safe operation.

@ JAN 1981

PG 505

QT1S+W
TEKTOOWX® PG 505 P ULSE GENERATOR

. l ¥ i Bj i M^I

PG 505 Pulse Generator

1663

VI

REV A JAN 1981

Section 1— PG 505

SPECIFICATION

INTRODUCTION

Description

The PG 505 is a compact 100 kHz, 80 V general
purpose pulse generator that is designed to operate in a
TM 500 Series Power Module. Controls are provided for
selection of a specific pulse period, duration, risetime,
falltime, amplitude and output polarity. Additional
features are listed in the Operators Section.

All inputs and outputs available at the interface connec-
tor, located at the back of the PG 505 and the TM 500
Series Power Module, are shown in the Maintenance
Section.

The performance limits in this specification are valid
with the following conditions:

Each instrument must be calibrated at an ambient
temperature between +20° C and +30° C. Each instrument
must be in an environment as described in Table 1-2.

Supplemental Information

The Supplemental Information listed here represents
limits for optimum instrument operation. These limits are
not instrument specifications, but they are intended to be
used as maintenance or operational aids.

Table 1-1
ELECTRICAL CHARACTERISTICS

Characteristics

Performance Requirements

Supplemental Information

Pulse Output
Amplitude

±4 V or less to at least +80V
from a 4 kQ source.

Aberrations

sS5% peak-to-peak at full amplitude
■ into a 4 kO, 20 pF load.

Residual DC Offset ; sSO.5% at full amplitude.

Isolation

±200 V dc from chassis ground.

: Shipped from factory with bnc
OUTPUT connector shell grounded
by removable ground strap. Shell

'■■ is grounded through 100 kQ
resistor R545 when ground strap
is removed. The resistor may also

[ be removed, but causes some de-

. gradation of performance.

Caution Indicator

On at <40 V; off at. ^20 V.

Risetime and Falltime
1 //s

Within +0%, -10%, (10% and
90% points).

REV NOV 1981

1-1

Specification— PG 505

Table 1-1 (cont)

Characteristics

Performance Requirements

Supplemental Information

10 (is, 100 /us,

and 1 ms

Within ±5% of indicated time when T R
and T F controls are set to X1
position. (Between 0% and 100%
points.)

Pulse Duration (Width)

5 /us or less to 50 ms (5 /us to 5 ms

Stated limits apply over a temp-

within 5%, 50 ms within 20%) in

erature range of +15°C to +35° C.

decade steps with the VARIABLE

An additional 3% tolerance must be

control fully ccw (X1). VARIABLE

added to the stated limits over

extends duration to at least

the temperature range of 0° C to +50° C.

0.5 s in fully cw position (X10).

Duty Factor

Maximum duty factor — 99%, minimum

Duty Factor is defined as Pulse

duty factor — minimum specified

Duration/ Pulse Period X100.

pulse duration can be attained

for any specified period setting.

Pulse Period (Repetition

10 (is (100 kHz) or less to 100 ms

Range)

(100 Hz), within 5% in decade steps
with the VARIABLE control fully ccw
(X1). VARIABLE extends period to
at least 1 s (1 Hz) in fully cw
position X10).

Pulse Risetime and Fall

1 /us or less to 1 ms in decade steps

time

with the T R or T F controls
fully ccw (X1). T R or T F controls
extends time to at least 20 ms in fully
cw position (X20).

Trigger Output

0to>+4 Vinto 10 kfi

Trigger pulse duration follows

to>+3 V into 600 O

output pulse duration.

Delay Mode

Delay Range (With

Oto 10 V within 5%.

Respect to Delay Signal)

Delay Jitter

^0.02% of a ramp period with a
V to +10 V range input signal.

Measured between 5 and 95% points
on a 10 V input ramp.

External Duration

Input Amplitude

5*0.5 V(TTL) into>10 kO.

EXT DURATION mode always over-
rides OUTPUT DELAYED mode.

Custom Pulse Duration

5 /us and slower, depending upon

Range

capacitor and setting of PULSE
DURATION VARIABLE.

Custom Pulse Period

10 /us and slower, depending upon

Range

capacitor and setting of PERIOD
VARIABLE.

1-2

REV C JAN 1981

Specification— PG 505

Table 1-2
ENVIRONMENTAL CHARACTERISTICS

Characteristics

Description

Temperature
Operati ng
Storage

0°Cto+50°C
-40°Cto+75°C

Altitude
Operating
Storage

To 15,000 feet
To 50,000 feet

Vibration

Operating and Non-
Operating

With the instrument complete and operating, vibration frequency swept
from 10 to 50 to 10 Hz and 1 minute per sweep. Vibrate 15 minutes in each
of the three major axes at 0.015 inch total displacement. Hold 3 minutes
at any major resonance, or if none, at 50 Hz. Total time, 54 minutes.

Shock

Operating and Non-
Operating

30 g's, 1/2 sine, 11 ms duration, 2 shocks in each direction along 3
major axes, for a total of 12 shocks.

Transportation

Qualified under National Safe Transit Comittee Test Procedure 1A,
Category II.

Table 1-3
PHYSICAL CHARACTERISTICS

Characteristics

Description

Finish

Anodized aluminum panel and chassis.

Net Weight

1.6 lbs (724.8 grams).

REV C JAN 1981

1-3

Section 2— PG 505

OPERATING INSTRUCTIONS

Initial Operation

Turn the Power Module off before inserting the plug-
in; otherwise, damage may occur to the plug-in
circuitry or connector.

The PG 505 is calibrated and ready for use when
received. It is designed to operate in any compartment of
the TM 500 series power module.

Refer to the power module instruction manual for line
voltage requirements and power module operation. See
Fig. 2-1 for installation and removal procedure.

Be sure that the PG 505 is fully inserted in the power
module. Pull the PWR switch onthe power module. Check

that the POWER light on the PG 505 is on. The Controls
and Connectors Fig. 2-2 gives a complete description of
the front panel controls and connectors.

Functions Available At Rear Connector

Refer to the rear connector assignment illustration in
the Maintenance Section of this manual for pin
assignments.

A slot between pins 23 and 24 on the rear connector
identifies the PG 505 as a member of the signal source
family. A barrier may be inserted in the corresponding
position of the power module jack to prevent other than
signal source plug-ins from being used in that compart-
ment. This protectsthe plug-in if specialized connections
are made to that compartment. Consult the Building A
System section of the power module manual for further
information.

TOP
GROOVE

BOTTOM
GROOVE

(1706-02)1583-9

Fig. 2-1. PG 505 Installation and removal.

REV C JAN 1981

2-1

Operating Instructions— PG 505

PERIOD Switch

Switch concentric with
PULSE Duration switch,
which selects pulse periods
from 10 ms to .1 s in 5 dec-
ade steps. Mechanically
coupled to PULSE DURA-
TION switch so the period is
always greater than the du-
ration when both VARIABLE
controls are in the X1 posi-
tion. Also selects output de-
layed and custom pulse
period modes.

POWER indicator

Lights when power is ap-
plied to the PG 505.

T R (RISE TIME) Control

Provides continuously vari-
able selection of rise time
between the decade steps
of the RISE AND FALL
TIMES push buttons, inde-
pendent of the T F control.
Extends the rise time to at
least 20 ms in the fully cw
(X20) position.

OUTPUT DELAY Control

Provides continuously vari-
able selection of dc level
pick-off point (start of pulse
duration) from volts to
+ 10 volts on the input sig-
nal. Control is used only
when PERIOD switch is in
output delayed mode.

INPUT Connector

Bnc connector for applying
an input signal, which in
conjunction with the OUT-
PUT DELAY control, deter-
mines the start of the pulse
duration when the PERIOD
switch is in the output de-
layed mode. If the PULSE
DURATION switch is set to
EXT DURATION, the input
signal enables an output
pulse from the duration gen-
erator only for the time that
the input signal exceeds the
level determined by the
OUTPUT DELAY control.

VARIABLE (Period)
Control

Provides continuously vari-
able selection of pulse peri-
od between calibrated
stops. Extends period to at
least 1 s in fully cw (> X10)
position.

VARIABLE (Pulse
Duration) Control

Provides continuously vari-
able selection of pulse dura-
tion between calibrated
steps. Extends duration to
at least 0.5 s in the fully cw
(> X10) position.

TRIG OUT Connector

Bnc connector that provides
a +4 volt pulse coinciding
with the pulse duration.

CAUTION Indicator

Lights when output pulse
amplitude exceeds 40 volts.

PULSE DURATION
Switch

Switch concentric with PE-
RIOD switch, which selects
pulse duration from 5 ms to
50 ms in decade steps. Me-
chanically coupled to PERI-
OD selector so the duration
is always less than the peri-
od when both VARIABLE
controls are in th X1 posi-
tion. Also selects output
locked on, external duration
and custom pulse duration
modes.

RISE AND FALL TIMES
Pushbuttons

Four self-canceling buttons
that select rise time and fall
time of individual pulses
from 10% to 90% amplitude
level and from 90% to 10%
level respectively. Four cali-
brated rise times or fall
times when T R and Tp are in
fully ccw (X1) position.

T F (Fall time) Control

Provides continuously vari-
able selection of fall time
between the decade steps
of the RISE AND FALL
TIMES pushbuttons, inde-
pendent of the Tr control.
Extends the fall time to at
least 20 ms in the fully cw
(X20) position.

AMPLITUDE Control

Provides continuously vari-
able pulse amplitude from
approximately 4 volts to at
least 80 volts when output
is not terminated.

+ PULSE Pushbutton

A push switch that selects
either positive-going or neg-
ative-going output pulse.

OUTPUT Connector

Bnc connector providing a
floating dc-coupled output
pulse signal whose charac-
teristics are determined by
the front panel controls.

1583-2

Fig. 2-2. Controls and Connectors.

2-2

REV D JAN 1981

Operating Instructions— PG 505

OPERATING CONSIDERATIONS

Output Connections

The output of the PG 505 is designed to operate as a
voltage source with a 4 kfi resistor in series.

Pulse characteristics can be preserved by observing
the following precautions:

1. Use high quality coaxial cables and connectors.

2. Make all connections tight and as short as possible.

3. Use high quality attenuators, if necessary, to reduce
the pulse amplitude to sensitive circuits.

4. Use terminators or impedance matching devices to
avoid reflections.

5. Ensure that attenuators, terminations, etc., have
adequate power handling capabilities for the output pulse.
Power output is determined by the duty factor of output
pulse current.

NOTE

The PG 505 has been designed so that the output
bnc connector may be floated for floating-common
operation by removing the wire connecting the bnc
shell to the ground lug located at the front bottom
circuit board mounting screw. If the output is to be
elevated to a dangerous potential, or if local safety
regulations prohibit use of floating bnc connectors,
replace the bnc output connector. A suitable con-
nector and mating plug are the Tektronix 131-101 1-
00 and 131-1012-00. The PG 505 may be ordered
with this connector factory installed by specifying
Mod 81 8C.

Risetime and Falltime

If the output pulse from the PG 505 is used for
measuring the rise and falltime of a device, the risetime
characteristics of associated equipment may have to be
considered. If the risetime of the device under test is at
least 10 times longer than the combined risetimes of the
PG 505 plus the monitoring oscilloscope and associated
cables, the error introduced will not exceed 1% and
generally can be ignored. If the rise or falltime of the test
device, however, is less than 10 times as long as the
combined risetimes of the testing system, the actual
risetime of the device will have to be determined from the
risetime of each component making up the system. This
equals the square root of the sum of the squares of the
individual risetimes. Conversely, the risetime of the device
under test can be found from the same relationship if the
actual risetimes in the system are known, except that of
the device under test.

If there is a dc voltage across the output load, the output
pulse amplitude will be compressed, or in some cases, the
output may be short circuited. To prevent this from
occuring, the output must be coupled through a dc
blocking capacitor to the load. The time constant of the
coupling capacitor and load must be long enough to
maintain pulse flatness.

REV F JAN 1981

2-3

Operating Instructions— PG 505

OPERATING MODES

Normal

In the normal mode, the period generator free runs at
the rate selected by the PERIOD switch and VARIABLE
control. The duration of the output pulse (see Definitions
of Pulse Characteristics) is selected by the PULSE
DURATION switch and its associated VARIABLE control.
Amplitude is set by the AMPLITUDE control. The pulse
polarity from a reference is selected by the + PULSE push
button. The PERIOD and PULSE DURATION selectors
are mechanically coupled so the duty factor cannot
exceed 50% with the VARIABLE controls in the X1
position.

Output Locked On

When the PULSE DURATION selector is in the
LOCKED ON position, the output remains locked at a dc
level selected by the AMPLITUDE control and the +
PULSE push button (<4 to 80 V).

External Duration

When the PULSE DURATION switch is in the EXT
DURATION position, the period generator is disabled.
The output pulse now turned on by applying a positive-
going signal to the INPUT connector. The OUTPUT
DELAY control becomes the input threshold control. The
external signal applied must rise to an amplitude ap-
proximately equal to the setting of the OUTPUT DELAY
control before an output pulse is generated. The PG 505
output returns to zero when the signal on the INPUT
connector falls to the setting of the OUTPUT DELAY
control. Thus, the period and duration of the output pulse
are dependent on the period and duration of the external
signal applied to the INPUT connector. (See Fig. 2-3).

Output Delayed

The period generator is disabled when the PERIOD
switch is in the OUTPUT DELAYED position. The start of
the pulse duration is controlled by picking a voltage point,
with the OUTPUT DELAY control, on a to +10 V ramp
waveform connected via the INPUT connector. The
duration of the output pulse is selected by the PULSE
DURATION switch and its associated VARIABLE control,
while the period is dependent on the repetition rate of the
ramp (see Fig. 2-4).

OUTPUT
PULSE

EXTERNAL
PULSE

OUTPUT
PULSE

EXTERNAL
SINEWAVE

OUTPUT
PULSE

EXTERNAL
SQUAREWAVE

NOTE
OUTPUT PULSE AMPLITUDE IS VARIABLE WITH FRONT
PANEL AMPLITUDE CONTROL.

POLARITY SELECTED BY + PULSE PUSH-PUSH BUT-
TON. RISE TIME AND FALL TIME VARIABLE WITH
FRONT PANEL CONTROLS. , S si

Fig. 2-3. Pulse duration and period being controlled by various
external signals.

Custom Period and Pulse Duration

A special switch position is provided on the PERIOD and
PULSE DURATION switches that provides a unique (cus-
tom selected) period and/or pulse duration. The electrical
characteristics in section 1 define the period and pulse dura-
tion limits. The locations of the added capacitors are shown
in Fig. 2-5.

2-4

REV NOV 1981

Operating Instructions — PG 505

DURATION VARIABLE WITH
FRONT PANEL PULSE
DURATION SWITCH AND
ASSOCIATED VARIABLE
CONTROL.

AMPLITUDE VARI-
ABLE WITH FRONT
PANEL AMPLITUDE
CONTROL. POLARITY
SELECTED BY +
PULSE PUSH-PUSH
BUTTON. RISE TIME
AND FALL TIME
VARIABLE WITH
FRONT PANEL CON-
TROLS.

-MOV

OV

EXTERNAL RAMP SIGNAL

PICKOFF POINT
SELECTED WITH
OUTPUT DELAY
CONTROL

©»,„ h>A# J ^»'»^. L

;!DDDDD[lf^

1583-5

Fig. 2-4. Start of output pulse being controlled by selected pick-
off voltage point on ramp signal.

Fig. 2-5. Locations for custom period and pulse duration
capacitors.

The custom range positions on the PERIOD and DURA-
TION controls permit user-selected period and duration
times. To determine the approximate capacitor value for the
desired period, multiply the period time in seconds by 5 X
10~ 5 . The result is the value of the capacitor in Farads. For
example, a 50 ms period times 5 X 10 5 equals 250 X 10~ 8
or 2.5 /uF. This capacitor must be nonpolarized and have at
least a 6 V rating. Solder this capacitor in the position
shown in Fig. 2-5.

To determine the capacitor value for the duration time
desired, multiply the duration time by 2 X10 -3 . For example
a 50 ms duration time requires 50 ms times 2X10~ 3 ora
100 uF capacitor. If a polarized capacitor is used, observe
the correct polarity. Use at least a 6 V rated capacitor. Con-
nect this capacitor as shown in Fig. 2-5.

FUNCTIONS AVAILABLE AT REAR CONNECTOR

Unassigned pins are available at the rear connector for
routing signals to and from the PG 505 for specialized
applications (see Rear Connector Pin Assignments in
Section 5). One or more compartments of a multi-plug-in

Power Module can be wired with barriers installed to
provide specific functions between compartments. See
Power Module instruction manual for additional
information.

REV NOV 1981

2-5

Operating Instructions— PG 505

DEFINITIONS OF PULSE CHARACTERISTICS

The following is a glossary of common pulse char-
acteristics used in this manual. They are also illustrated in
Fig. 2-6.

Falltime— The time interval, at the pulse trailing edge,
for the pulse amplitude tofall from the 90% amplitude level
to the 10% amplitude level.

Amplitude— The maximum absolute peak value of a
pulse, regardless of sign and excluding unwanted aberra-
tions or overshoot, from the zero axis. Amplitude is
measured between a point that is 50% of the pulse duration
(pulse top) to a baseline reference that is 50% of the off
time (pulse period minus pulse duration).

Aberration— Unwanted deviations or excursions in the
pulse shape from an ideal square corner and flat top, i.e.,
overshoot, undershoot or rounding, ringing, and tilt or
slope.

Baseline— The quiescent dc voltage reference level of
the pulse waveform.

Flatness— The absence of long term variations to the
pulsetop; excluding overshoot, ringing or pulse rounding.
Sometimes referred to as tilt or slope.

Overshoot— The short-term pulse excursion (or tran-
sient) above the pulse top or below the baseline that is
simulataneous to the leading and trailing edge of the
pulse.

Period— The term interval for a full pulse cycle. Inverse
of frequency or repetition rate. Interval between cor-
responding pulse amplitudes of two consecutive un-
delayed or delayed pulses. Generally measured between
the 50% amplitude levels of two consecutive pulses.

Duty Factor— Sometimes referred to as duty cycle. The
ratio of pulse duration to period or the product of pulse
duration and pulse repetition rate. Duty factor % =
Duration/Period X100.

Preshoot— A transient excursion that precedes the step
function. It may be of the same or opposite polarity as the
pulse.

OVERSHOOT p ULSE TOP

1 „ RINGING FLATNESS

PULSE
TOP

PRESHOOT

DUTY FACTOR = PULSE DURATION/PULSE PERIOD

(2044-38)1583-10

Fig. 2-6. Pulse characteristics.

2-6

REV G JAN 1981

Operating Instructions— PG 505

Pulse Duration— The time interval between the leading
and trailing edge of a pulse at which the instantaneous
amplitude reaches 50% of the peak pulse amplitude.

Polarity— The direction from the baseline of the pulse
excursion. Either positive-going (+) or negative-going
(-)■

Save and re-use the package in which your instrument
was shipped. If the original packaging is unfit for use or
not available, repackage the instrument as follows:

1. Obtain a carton of corrugated cardboard having inside
dimensions of no less than six inches more than the
instrument dimensions; this will allow for cushioning.
Refer to the following table for carton test strength
requirements.

Ringing— Periodic aberrations that dampen in time,
following the overshoot.

Surround the instrument with polyethylene sheeting to
protect the finish of the instrument.

Risetime— The time interval, at the step function
leading edge, for the pulse to rise from the 10% to 90%
amplitude levels.

Cushion the instrument on all sides by tightly packag-
ing dunnage or urethane foam between carton and
instrument, allowing three inches on all sides.

Rounding or Undershoot— The rounding of the pulse
corners at the edges of a step function.

4. Seal carton with shipping tape or industrial stapler.

Tilt or Slope— A distortion of an otherwise flat-topped
pulse, characterized by either a decline or a rise of the
pulse top. (See Flatness.)

REPACKAGING FOR SHIPMENT

If the Tektronix instrument is to be shipped to a
Tektronix Service Center for service or repair, attach atag
showing: owner (with address) and the name of an
individual at your firm that can be contacted, complete
instrument serial number and a description of the service
required.

SHIPPING CARTON TEST STRENGTH
Gross Weight (lb) Carton Test Strength (lb)

0-10

10-30

30-120

120-140

140-160

200
275
375
500
600

REV G JAN 1981

2-7

WARNING

THE FOLLOWING SERVICING INSTRUCTIONS ARE
FOR USE BY QUALIFIED PERSONNEL ONLY. TO
AVOID PERSONAL INJURY, DO NOT PERFORM ANY
SERVICING OTHER THAN THAT CONTAINED IN
OPERATING INSTRUCTIONS UNLESS YOU ARE
QUALIFIED TO DO SO.

Section 3— PG 505

THEORY OF OPERATION

DIAGRAM ^>

Delay Pickoff Trigger Comparator

The delay pickoff trigger comparator is composed of
differential amplifier Q100-Q102, OUTPUT DELAY con-
trol R110, and switching transistor Q115.

Delayed Output Operation

To use this circuit for a delayed output, the PERIOD
switch is set to its OUTPUT DELAYED position. The
INPUT connector J100 (or rear interface pin 24B) con-
nects the i nput signal (usually a ramp) to the base of Q1 00.

The reference voltage for the differential amplifier is
supplied to the base of Q102 from the OUTPUT DELAY
control. As long as the signal at the base of Q100 is more
negative than the reference voltage at the base of Q102,
Q100 and Q115 conduct. As soon as the base of Q100
becomes more positive than the base of Q102, Q100 and
Q115 turn off. This applies a high to pin 3 of U175,
triggering the duration generator one-shot multivibrator.

The period generator free-runs in all positions of the
PERIOD switch and in all but the EXT DURATION position
of the PULSE DURATION switch. The period generator
sets the basic timing for the pulse generator.

The PULSE DURATION and PERIOD switches are
interlocked to prevent the period from exceeding the
duration.

In the EXT DURATION position of the PULSE
DURATION switch, the negative input to the period
generator (base of Q1 40) isconnectedtoeitherthelNPUT
connector J100 or pin 24B of the rear interface connector.
The period generator timing components and the output
of the duration generator are disconnected. The output of
the period generator (and therefore the PG 505 output)
goes high and stays high only as long as Q115 remains
turned off.

When the PERIOD switch is set to C

3 , a selected

capacitor may be connected between two circuit board
pads to obtain a custom period.

External Duration Operation

Set the PULSE DURATION switch to EXT DURATION
to use this circuit for an externally controlled duration.
The INPUT connector J100 (or rear interface pin 24B)
connects the input signal (usually a pulse) to the base of
Q100.

The free-running period generator can be gated off by
applying a 5 volt positive-going pulse whose duration is
the same as the off ti me desired. The +5 volt i nput pulse at
pi n 21 B of the rear i nt erf ace connector causes CR1 22 to be
forward biased. With CR1 22 forward biased, Q140 base is
held at about a +2.5 V level, thus stopping thefree-running
generator.

The reference voltage for the differential amplifier is sup-
plied to the base of Q1 02 from the OUTPUT DELAY control.
As long as the signal at the base of Q1 00 is more negative
than the reference voltage at the base of Q102, Q100 and
Q115 conduct. With Q115 conducting, the period generator
output is low. (The PG 505 output state is determined by the
period generator's transitions). As soon as the base of
Q100 becomes more positive than the base of Q102, Q100
and Q1 1 5 turn off. This causes the period generator to go
high and stay high as long as Q1 15 is turned off.

Using the external gating circuit described above may
cause some time distortion to the first and last pulse of a
pulse-string.

DURATION GENERATOR

The duration generator is a retriggerable one-shot
multivibrator consisting of integrated circuit U175, timing
capacitors C180 through C188, and timing resistors R1 76
through R186.

PERIOD GENERATOR

The period generator is a free-running multivibrator
that consists of operational amplifier Q140-Q142-Q144,
ti mi ng capacitors C1 26 through C1 34, and ti mi ng resistors
R128 through R136 and R148 through R152.

A high applied to pin 3 of U175 triggers the one-shot
multivibrator to produce a single, positive-going pulse at
pin 8. The width of the pulse is determined by the timing
capacitors and resistors. When the PULSE DURATION
switch is set to I I , a selected capacitor may be

REV NOV 1981

3-1

Theory of Operation— PG 505

connected between two circuit board pads to obtain a
custom duration.

A low from the delay pickoff comparator disables the
duration generator until the input ramp causes the output
of the delay pickoff comparator to switch to its high state.
The high at pin 3 of U175 enables the duration generator.
The duration generator now operates as it would normally.
The period ofthepulseisdeterminedbytherepetitionrate
of the input signal to the delay pickoff comparator.

The duration generator output is disconnected from
the remainder of the PG 505 circuitry in the EXT
DURATION position of the PULSE DURATION switch.

TRIGGER OUTPUT

Emitter follower Q164, inverter-amplifier Q160, and
one-half of coupling transformer T190 compose the
trigger output. Q164 provides a low impedance point for
the trigger output signal from either the front panel TRIG
OUT J170 connector or pin 27B on the rear interface.

Q160 is inserted into the circuit (to invert the output of
the period generator) whenever the PULSE DURATION
switch is set to its EXT DURATION position.

DIAGRAM

<S>

Signal Restorer

The Signal Restorer circuit is composed of Q190 and
Q200, a Schmitt multivibrator.

The square-wave output of the signal restorer is
coupled to the input of the emitter coupled switch, which
is an active pull-up, pull-down switch. When the square
wave at the base of Q21 2 is high, Q220 conducts (Q21 4 is
turned off) and the common collector point with Q214 is
high. When the square wave goes low at the base of Q212,
Q214 conducts (Q220is now turned off) and the common
collector point with Q220 is low.

RISETIME AND FALLTIME CURRENT
SOURCES

The risetime and falltime current sources are com-
posed of amplitude limiting Zener diodes VR220-VR222,
diode bridge CR234 through CR240, risetime constant
current source Q230, T R control R230, falltime constant
current source Q240, and T F control R240.

VR220 and VR222 limit the square wave to the diode
bridge to 20 volts peak-to-peak. A positive-going 10-volt
square wave at the input to the diode bridge forward
biases CR238. With CR238 turned on, all the current the
falltime constant current source can supply is demanded
by Q220. The risetime constant current source now
supplies current, at a rate determined by T R control R230,
to charge a capacitor (C250 through C258), via CR236, to
the same voltage that is at the input to the diode bridge.
CR240 acts in this condition to limit the maximum voltage
the capacitor can attain. A negative-going 10-volt square
wave at the diode bridge input forward biases CR234. All
of the risetime constant current source current is now
demanded by Q214. The falltime constant current source
now supplies current to charge the capacitor (via CR240)
negatively to the same voltage that is at the diode bridge
input. CR236 in this case acts to limit the maximum
capacitor charge voltage.

The alternating, differentiated, positive and negative
peaks applied to the base of Q190 result in asquare wave
at t he collector of Q200, si nee a positive peak at the base of
Q190 causes the collector of Q200tobehigh, while a low
at the base of Q1 90 causes the coll ector of Q200 to be low.

In the LOCKED ON position of the PULSE DURATION
switch, the base of Q200 is tied to a negative voltage,
causing the collector of Q200 to remain high. The output
of the PG 505 is now a dc level controlled by the
AMPLITUDE control.

RISETIME AND FALLTIME CURRENT
SWITCH

Emitter coupled switch Q212-Q214-Q220 make up the
risetime and falltime current switch.

OUTPUT AMPLIFIER

The output amplifier is composed of source follower
Q260, emitter followers Q262-Q280, complementary-
symmetry stage Q286-288, operational amplifier Q290-
Q310-Q316-Q320-Q330-Q346-Q354, constant current
source Q300, indicator control transistors Q382, Q390, and
Q394, and output reference supplies Q370 and Q360.

Field effect transistor (FET) Q260A, connected as a
source follower, presents a high impedance to the input
signal from the current sources and a low impedance to
the base of Q262. FET Q260B is connected as a current
source; this minimizes dc level shift between the gate and
source of Q260A since both FET halves are alike in
characteristics. Q262 and Q280are both emitterfollowers;
one is a PNP type and the other a NPN type transistor to
eliminate any Vve problem. Q286 and Q288 form a
complementary-symmetry circuit to drive the input
resistance of the output amplifier.

3-2

REV NOV 1981

Theory of Operation— PG 505

Q290, Q310, Q316, Q320, Q330, Q346, and Q354
compose an operational amplifier stage whose gain is
about 4.0. With the front-panel + PULSE pushbutton
pushed in (positive-going pulse output), the feedback
resistors for the operational amplifier are R340 and R306,
while the effective input resistance is R306 (actual stage
input resistor is R292). When the + PULSE pushbutton is
in its extended position (negative-going pulse output), the
feedback resistor is R340 while R308 is the input resistor.
Q346 and Q354 form a complementary-symmetry circuit
to drive low input resistance that might be connected to
OUTPUT connector J340.

+5 Volt Supply. The 5 volt supply is derived from the
+20 volt supply. The supply consists of voltage dropping
resistor R542, Zener diode VR542, emitter follower tran-
sistor (located in the power module mainframe), and the
temperature compensation diode CR542.

-6 Volt Supply. The -6 volt supply is derived from the
TM 500 Series Power Module -33.5 volt unregulated
supply. Zener diode VR550setsthe base voltage of emitter
follower Q550 and provides regulation. CR550 provides
temperature compensation.

Q300 forms a constant current source that furnishes
current to the normal (Q290) and i nverted (Q310) i nputs to
the operational amplifier.

The CAUTION indicator turns on whenever the base of
Q382 is about volts with respect to floating ground,
which turns on Q382, Q390, and Q394. The approximate
volts at the base of Q382 is equivalent to an output
voltage of about 40 volts or more.

To achieve the large amplitude swing required of the
amplifier, two reference supplies (referenced to internal
floating ground) are used to establish the baseline of the
signal. The Q360 emitter follower -48 volt supply is
connected to the shield part of OUTPUT connector J340
whenever the + PULSE pushbutton is in for a positive-
going pulse. The +48 volt supply is the reference supply
for negative-going pulses. The-10voltsthatisconnected
to one end of the AMPLITUDE control offsets the
squarewave so it will match the baseli ne reference voltage
at the OUTPUT connector.

DIAGRAM

<*>

Power Supplies

Ground Reference Power Supplies

+20 Volt Supply. The regulator for the +20 volt supply
consists of Q520, an error sensing and amplifier transistor,
Q530, and error amplifier and regulator transistor, andthe
series pass transistor that is located in the power module
mainframe. The supply voltage is established by com-
paring the supply voltage sample, which is established by
R520 (+20 V cal) at the base of Q520, with the reference
voltage established by VR520 at the emitter of Q520. Any
difference between the Q520 base and emitter voltage is
amplified by Q520 and Q530, and used to change the
conduction of the series pass transistor to correct the
output voltage. R514 provides current limiting for Q520 in
case Q530 fails. C514 prevents regulator oscillation.

+ 12 Volt Supply. The +12 volt supply is derived from
the +20 volt supply. The supply consists of voltage drop-
ping resistor R534, and Zener diode VR 534.

Floating Power Supplies

-48 Volt Supply. Two 25 volt AC windings are con-
nected in series to supply about 50 volts AC from the
TM 500 Series Power Module to the -48 volt regulator.
The regulator for the -48 volt supply consists of
operational amplifier U610A, series pass transistor Q642,
and level shifting Zener diode VR646. The gain of the
amplifier is set by R656, R658 and R660. R656 is the input
resistor while R658and R660 arethefeedback resistors for
the operational amplifier. The gain oftheamplifierissetto
about eight times by R658 (-48 V cal). The supply voltage
is established by comparing the voltage at the negative
input of U610A with the voltage reference at the positive
input. Any differences between the negative and positive
inputs to U610A causes a change in the conduction of
Q642 to correct for the output error. Level shifting Zener
diode VR646 allows U610A, which has a V<x of 30 volts, to
be used to regulate a much higher voltage. Q646 protects
the supply in the event of a current overload. The overload
will cause Q646 to turn on, which biases Q642 off, shutting
the -48 volts supply down. R640 is a shunt resistor for
Q642 to bypass part of the current and reduce its
temperature.

-20 Volt Supply. The -20 volt supply is derived from
the— 48 volt supply. The supply consists of voltage divider
resistors R626-R624 and operational amplifier Q620-
Q622. The operational amplifier has unity gain. Thesupply
voltage is established by comparing the voltage at the
collector of Q622 with the reference voltage at the base of
Q620. Any differences between thetwo voltages will cause
a change in the output that corrects the output error.

Output Balance Reference. (-10 V supply) The

reference is derived from the -48 volt supply. The
reference consists of voltage divider resistors R617-R615-
R614, operational amplifier U610B, and emitter follower
Q610. The operational amplifier has unity gain. The output
balance reference voltage is established by compari ng the
voltage at the negative input of U610B with the reference
voltage at the positive input, which is set by R615 (-10 V
cal). Any differences between the two inputs of U61 0B will
cause a change i n its output so as to correct for the output
error.

REV NOV 1981

3-3

Theory of Operation— PG 505

+48 Volt Supply. The regulator for the +48 volt supply voltage is amplified by Q566 and Q576 and used to change

consists of Q566 (an error sensing and amplifier tran- the conduction of Q580 to correct output voltage. R564

sistor), Q576 (an error amplifier and regulator transistor), provides current limiting for Q566 in case Q576fails. C564

and Q580, the series pass transistor. The supply voltage is prevents regulator oscillation. R579 is ashunt resistorfor

established by comparing the supply voltage sample, that Q580 to bypass part of the current and reduce its

is established by R570 + (+48 V cal) at the base of Q566 temperature,
with the reference voltage established by the —48 volt
supply and diode CR566 at the emitter of Q566. Any

difference between ground and the Q566 base and emitter +20 Volt Supply. The +20 volt and -20 volt supplies are

similar in operation.

3-4 @ JAN 1981

Section 4— PG 505

CALIBRATION PROCEDURE

PERFORMANCE CHECK PROCEDURE

Introduction

The performance check procedure checks the elec-
trical performance requirements listed i n the Specification
section in this manual. Perform the Adjustment procedure
if the instrumentfailstomeetthese checks. If recalibration
does not correct the discrepancy, troubleshooting is
indicated. This procedure may be used to determine
acceptability of performance in an incoming inspection
facility.

For convenience, some steps in the procedure check
the performance of this instrument at only one value in the
specified performance range. Performance requirements
for various temperature ranges are listed in this
procedure. When performing the procedure, use only the
limits listed for the ambient temperature that the instru-
ment is operating in.

Calibration Interval

To ensure instrument accuracy, check the calibration
every 2000 hours of operation or at a minimum of every six
months if used infrequently.

Services Available

Tektronix, Inc. provides complete instrument repair
and adjustment at local field service centers and at the
factory service center. Contact your local Tektronix field
office or representative for further information.

Test Equipment Required

The following test equipment or equivalent is
suggested to perform the Performance Check and Adjust-
ment Procedure.

Clip Lead Adapter

Table 4-1
TEST EQUIPMENT REQUIREMENTS

Description

Performance Requirements

Suggested Equipment

Power Module

TEKTRONIX TM503 or TM 504

Oscilloscope Main Frame

DC— 10 MHz

TEKTRONIX 7704A, 7504

Vertical Amplifier

DC— 10 MHz (high dynamic

range)

7A26

Time Base

1 sec/div — 1 ^sec/div

7B70.7B50

Counter

10 Hz— 1 MHz

DC 503A

Function Generator

0— 15 V Ramp/500 Hz

FG 501 A

50 Q Terminator

50 Q ±1%

Tektronix 011-0049-01

Bnc "T" Connector

Tektronix 103-0030-00

50 fi Cables (3)

Tektronix 012-0057-01

X10 Probe

Tektronix 010-0128-00

4K Resistor

0.5 W, 1%

Tektronix 323-0251-00

Bnc to clip leads

Tektronix 013-0076-00

Bnc Male to Male
Adapter

Bnc

Tektronix 103-0029-00

600 fi Resistor

1 W, 1%

10K Resistor

1W, 1%

REV NOV 1981

4-1

Calibration Procedure— PG 505
Performance Check
Preliminary Procedure

With the power module turned off, install the PG 505,
the digital voltmeter and the frequency counter in the
power module. Turn all equipment onandallowatleast20
minutes to warm up.

Initial control settings. During warm-up, set the PG 505
controls as follows:

PULSE PERIOD .1 ms

PULSE DURATION 50 (JS

PERIOD VARIABLE Fully ccw

DURATION VARIABLE Fully ccw

T r Variable Fully ccw

T f Variable Fully ccw

RISE and FALL TIMES 1 jus in

OUTPUT DELAY Fully ccw

OUTPUT AMPLITUDE Fully ccw

+ PULSE In

1. Check Caution Indicator

a. Connect a 10X probe to the oscilloscope input.

b. Connect the 10X probe to the PG 505 OUTPUT
connector.

3. Check Residual DC Offset

a. Set the PG 505 to the initial control settings.

b. Connect a 10X probe from the oscilloscope to the
output of the PG 505.

c. Adjust the OUTPUT of the PG 505 for 80 V.

d. Remove the 10X probe and connect a coaxial cable
from the OUTPUT of the PG 505 to the input of the
oscilloscope.

e. Set the Oscilloscope to 0.5 V/Div.

f. CHECK that the residual dc level is less than 0.8
divisions away from the ground level on the crt. Check
the — output pulse for <0.8 divisions of shift from the
ground reference line.

4. Check Rise Time and Fall Time

a. Set the PG 505 to the initial control settings.

b. Connect the equipment as shown in Fig. 4-1.

c. CHECK that the CAUTION indicator light comes on
before the output reaches 40 V and goes out before the
output becomes less than 20 V.

2. Check Output Amplitude

a. Set the PG 505 to the initial control settings.

c. AdjustthePG 505 OUTPUT for a 6 division display.

d. Set the PULSE PERIOD to 10 /js and the PULSE
DURATION to 5 /js.

e. CHECK that the 1 0% to 90% rise time and fall time is
1 us +0%, -10%.

b. Connect the 10X probefromtheoscilloscopetothe
PG 505 OUTPUT.

c. Adjust the OUTPUT AMPLITUDE control fully cw.

d. CHECK for at least + and - 80 V as the +PULSE
button is pushed in and released.

f. Set the PG 505 as follows and check rise and fall
time as indicated:

PULSE PULSE RISE/FALL (0% to

PERIOD DURATION TIME 100%)

.1 ms

50 /js

10 /us

±5%

1 ms

.5 ms

100 (js

+5%

10 ms

5 ms

1 ms

+5%

e. Rotatethe OUTPUT AMPLITUDE control fully ccw.

f. CHECK that the output amplitude is less than + and
- 4 V as the +PULSE pushbutton is pushed in and
released.

5. Check Rise and Fall Time Variables

a. Set the PG 505 to the initial control settings.

b. Set the T control fully cw.

4-2

REV NOV 1981

Calibration Procedure— PG 505
Performance Check

O
O

o

PG505

©

®

9

10X
PROBE

L

<§>

BNC MALE TO -"^fi
MALE ADAPTER ■

7A26

BNC TO CLIP
LEAD ADAPTER

RESISTOR

1583-6

Rg. 4-1. Rise Time Check.

c. CHECK that the pulse rise time is 20 /js or more.

d. Set the T f control fully cw.

b. Connect the equipment as shown in Fig. 4-1, but
change to the 1 kfi resistor instead of the 4 kQ resistor
and connect it from the TRIG OUT instead of from the
OUTPUT of the PG 505.

e. CHECK that the pulse fall time is 20 /js or more.

6. Check Pulse Aberrations

a. Set the PG 505 to the initial control settings.

c. CHECK that the trigger output amplitude is 4 V or
more.

d. Remove the 10 kQ resistor and replace it with a 600 Q
resistor.

b. Set the pulse PERIOD to 10 fis and the pulse
DURATION to 5 fjs.

e. CHECK that the output amplitude of the trigger is
3 V or more.

c. Connect the equipment as shown in Fig. 4-1.

d. Set the OUTPUT for 4 divisions of deflection with the
oscilloscope set to 0.5 V/div.

e. CHECK the front corner of the pulse for no more than
0.2 divisions of overshoot or waveform aberration.

8. Check Pulse Period and Duration

a. Set the PG 505 to the initial control settings.

b. Connect the equipment as shown in Fig. 4-2. Set the
DC 503A to measure period B.

f. Repeat for the - pulse.

c. Use the following table to measure the pulse and
duration accuracy. (±5%)

7. Check Trigger Output Amplitude

a. Set the PG 505 to the initial control settings.

REV NOV 1981

4-3

Calibration Procedure— PG 505
Performance Check

O

o

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DC 503 PG 505

<§>

§>

1 1

A

3

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BNC
/ "T"

<§>

50 Q TERMINATOR —[J

7A26

Rg. 4-2. Pulse Period and Duration Check.

DURATION
Switch

5 ps
50 /us
.5 ms
5 ms
50 ms

PERIOD
Switch

10/is
.1 ms
1 ms
10 ms
.1 s

DC 503A
AVGS

10 3
10 3
10
10
10

PERIOD
Limits

9.5 — 10.0 /is
95 — 105 ns
.95 — 1.05 ms
9.5 — 10.5 ms
95 — 105 ms

OSCILLOSCOPE

PULSE

Time/Div

Width

1 /us

4.75 — 5.0 ps

10jus

47.5 — 52.5 fjs

.1 ms

475 — 525 fis

1 ms

4.75 — 5.25 ms

10 ms

40 - 60 ms (±20%)

9. Check the PERIOD and DURATION Variables

a. Set the PG 505 to the initial control settings.

c. Set the PG 505 PERIOD to OUTPUT DELAYED and
the DURATION to .5 ms.

b. Connect the equipment as shown in Fig. 4-2. Set the
DC 503 to measure Period. Use the settings in the
second line of the table in the preceding step.

c. Turn the PERIOD and PULSE DURATION controls
cw.

d. CHECK that the pulse and period readings increase
by 10 times or more.

10. Check Output Delay Range

a. Set the PG 505 to the initial control settings.

b. Connect the equipment as shown in Fig. 4-3.

d. Set the oscilloscope channel 1 to 0.5 V/div and
channel 2 to 5.0 V/div.

e. Set the FG 501 A to a 500 Hz positive ramp with an
amplitude of 15 V.

f. Position the scope Channel 2 trace to the center of
the graticule for a zero reference.

g. Use the FG 501A OFFSET to adjust the bottom of
the ramp approximately 0.4 V below the graticule
center.

h. CHECK that the PG 505 output pulse begins at the
point where the ramp signal crosses the graticule
center line within .1 div.

4-4

REV NOV 1981

Calibration Procedure— PG 505
Performance Check

O

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FG501A PGS05

®

®

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t ®

OUTPUT
/ 50 $2 TERMINATOR

/

| — 1

OUTPUT

I X DELAY/
J^ DURATION

7A26

T

BNC
"T"

1583-8

Fig. 4-3. Output Delay Range Check.

i. Set the PG 505 OUTPUT DELAY cw.

j. CHECK that the PG 505 output pulse begins at the
point where the ramp signal crosses the 10 V level (2
divisions abovethe graticule center) within. 1 division.

11. Check External Duration

a. Set the PG 505 to the initial control settings.

b. Connect the equipment as shown in Fig. 4-3.

c. Adjust the FG 501 for a 0.5 V output pulse, positive-
going from V.

d. Set the PG 505 DURATION switch to EXT DURA-
TION.

e. Check the test oscilloscope for a square wave
display.

12. Check LOCKED ON

a. Connect a 50-ohm cable and a 50-ohm terminator
from the PG 505 OUTPUT to the oscilloscope Channel 1
input.

b. Set the oscilloscope Channel 1 for 0.5 V/div.

c. Set the PG 505 PULSE DURATION to the LOCKED
ON position, all other settings to the initial control
settings.

d. Adjust the oscilloscope Channel 1 position to place
the trace at graticule center.

e. Adjust the PG 505 OUTPUT AMPLITUDE fully cw
and observe that the trace on the test scope moves up
approximately 2 divisions.

f. This completes the performance check.

REV NOV 1981

4-5

Calibration Procedure— PG 505
Adjustment Procedure

ADJUSTMENT PROCEDURE

Introduction

Use this Adjustment Proceduretorestorethe PG 505to
original performance requirements. This Adjustment
Procedure need not be performed unless the instrument
fails to meet the Performance Requirements of the
electrical characteristics listed in the Specification section
or if the Performance Check procedure cannot be com-
pleted satisfactorily. If the instrument has undergone
repairs, the Adjustment Procedure is recommended.

Satisfactory completion of all adjustment steps in this
procedure ensures that the instrument will meet the
Performance Requirements.

Test Equipment Required

The test equipment (or equivalent) listed in Table 4-1 is
required for adjustment of the PG 505. All test equipment
is assumed to be correctly calibrated and operating within
specifications.

If other test equipment is substituted, the adjustment
procedure may need to be altered to meet the re-
quirements of the equipment used.

Preparation

Access to the internal adjustments is easiest when the
PG 505 is connected to the power module with a flexible
plug-in extender. Make adjustments at an ambient
temperature between 21°C and 25°C (70°F and 77°F).
Allow at least 30 minutes of warm up time.

WARNING

Dangerous voltages exist at several points in this
instrument. When the instrument is operated with
the covers removed, do not touch exposed connec-
tions and components. Disconnect power before
cleaning the instrument or replacing parts.

Refer to the Adjustment Locations fold-out page in
section 8 of this manual. Install a 50 O. terminator on the
PG 505 OUTPUT connector.

1. Adjust +20 V Power Supply (R520)

a. Connect the dc voltmeter between the -20 V test
point and ground.

b. Check for a voltage between 19.9 V and 20.1 V.

c. Adjust R520 for the proper voltage.

d. Check the following supplies:

+12 V
+5 V
-6 V

(+11 V — +13 V)
(+4.8 V — +5.4 V)
(-5.8 V — -6.6 V)

2. Adjust Floating 48 Volt Power Supplies (R570 and
R658)

a. Connect the dc voltmeter between each test point
and the floating ground test point.

b. Check for a voltage between 47.9 and 48.1 volts at
each test point.

c. Adjust R570 (+48 V) and R658 (-48 V) for the
proper voltage.

d. Check the following floating supplies:

+20 V
-20 V
-10 V

(+19.5 V — +20.5 V)
(-19.5 V — -20.5 V)
(-9 V 11 V)

3. Adjust Output Balance (R360, R370, and R615)

a. Remove the 50 O. terminator from the PG 505
OUTPUT connector.

b. Set the oscilloscope to 0.5 V/div. Set thetracetothe
graticule center.

c. Set the PG 505 controls to:

DURATION

5 /js

PERIOD

4-DI II QC

10 ms

TrULot

OUTPUT AMPLITUDE

i n
cw

RISE/FALL TIME

1 /US

All other controls

ccw

d. Connect a 50 O. cable from the PG 505 OUTPUT to
the input of the oscilloscope.

e. Adjust R360 (+Adjust) to place the bottom of the
display to the graticule center within 0.2 div.

4-6

@ JAN 1981

f. Set the PG 505 +PULSE switch out.

g. Adjust R370 (—ADJ.) to place the top of the display
at the graticule center within 0.2 div.

Calibration Procedure— PG 505
Adjustment Procedure
5. Adjust Pulse Period and Duration (R135, R150 and
R180)

a. Set the PG 505 controls as follows:

h. Set the OUTPUT AMPLITUDE ccw.

i. Adjust R615 (BAL Adj.) to place the display at the
graticule center.

PULSE DURATION

.5 ms

PERIOD

1 ms

+ PULSE

In

OUTPUT AMPLITUDE

Fully ccw

All Other Controls

Fully ccw

4. Adjust Rise/Fall Times (R241 and C250)

a. Connect a 50 O cable terminated with a 50 O
terminator from the PG 505 OUTPUT tothe input of the
oscilloscope.

b. Set the PG 505 controls to:

OUTPUT AMPLITUDE Full cw

PULSE DURATION 5 ms

PERIOD 10 ms

RISE and FALL TIMES 1 ms

All other controls ccw

b. Connect a 50 fl. terminator, a bnc'T" connector and
two 50 Q coaxial cables to the OUTPUT connector of
the PG 505. Connect one cable to the vertical input of
the oscilloscope and the other cable to the frequency
counter.

c. Adjust the OUTPUT AMPLITUDE control fully cw.

d. Adjust R135 (1 ms Adj) for a digital frequency
counter reading of 1 kHz (±20 Hz).

c. Adjust R241 (Rise Time and Fall Time Range
Adjust) for a rise time of 1 ms between the 0% and 100%
points.

e. Adjust R180 (.5 ms Adj) for an oscilloscope pulse
display of exactly 0.5 ms (±0.01 (is).

d. Set the PG 505 DURATION switch to 5 /js.

f. Switch the PG 505 PULSE DURATION to 5,us and
the PERIOD switch to 10 /us.

e. Set the PG 505 PERIOD switch to 10 /js.

f. Set the PG 505 Rise and Fall Times switch to 1 /js.

g. Adjust C250 (1 /js rise time) for a rise time of 1 /js
between the 10% and 90% points.

h. Set the controls as indicated below and check that
the rise times and fall times are within limits for each
group of settings.

g. Adjust R150 (10 /js Adj) for a digital frequency
counter reading of 100 kHz (±5 kHz).

h. To verify the operation of all ranges and functions,
use the Performance Check.

i. This completes the adjustment procedure.

Oscilloscope Dis-

DURATION

PERIOD

RISE and FALL

Check

played Rise and

Switch

Switch

TIMES Switch

Points

Fall Time Limits

5 /js

10/ys

1 (IS

10 — 90%

0.90 — 1.00 fjs

50 /us

.1 ms

10 jus

— 100%

9.5— 10.5 /us

.5 ms

1 ms

100jus

— 100%

95 — 1.05 (is

5 ms

10 ms

1 ms

0— 100%

0.95— 1.05 ms

@ JAN 1981

4-7

Section 5— PG 505

MAINTENANCE

GENERAL

Introduction

This section of the manual is meant to support the
entire TM 500 Series family with a general coverage of the
most commonly-needed service information pertinent to
preventive maintenance, troubleshooting, ordering parts,
and replacing components and sub-assemblies.

Cabinet Removal

WARNING

Dangerous potentials exist at several points
throughout the system. When the system must be
operated with the cabinet removed, do not touch
exposed connections or components. Some tran-
sistors have voltage present on their cases.
Disconnect power before cleaning the system or
replacing parts.

in the absence of a malfunction are not recommended as
preventive maintenance measures. See the semiconduc-
tor checking information under Troubleshooting Techni-
ques which follow. A convenient time to perform preven-
tive maintenance is just before instrument calibration.

Calibration

To ensure accurate signal generation and measure-
ment, the performance of individual units in the system
should be checked periodically. Refer to the Instruction
Manual for each unit for complete calibration and verifica-
tion procedures.

TROUBLESHOOTING AIDS

Introduction

The following is provided to augment information
contained elsewhere in this and other TM 500 series
family manuals when troubleshooting becomes
necessary.

Cleaning

Avoid using chemical cleaning agents that might
damage plastic parts. Avoid chemicals containing
benzene, toluene, xylene, acetone, or similar
solvents.

Exterior. Loose dust may be removed with a soft cloth
or a dry brush.

Interior. Cleaning the interior of a unit should precede
calibration since the cleaning processes could alter the
settings of calibration adjustments. Use low-velocity
compressed air to blow off accumulated dust. Hardened
dirt can be removed with asoft brush, cotton-tipped swab,
or a cloth dampened in a solution of water and mild
detergent.

Circuit Description

Each manual hasasection devoted to explaining circuit
operating theory. Used with the schematics, this can be a
powerful analytic tool.

Diagrams

Block diagrams and detailed circuit schematics are
located on foldout pages in the service section of most of
the TM 500 Series Family manuals. The schematic
diagrams show the component values and assigned
circuit reference numbers of each part necessary to the
circuit design. Usually the first page of the service section
defines the circuit symbols and reference designators
used in that particular instrument. Major circuits are
usually identifiable by a series of component numbers.
Important waveforms and voltages may be shown within
the diagrams or on adjoining aprons. Those portions of
the circuits located on circuit boards are enclosed with a
dark outline.

Preventive Maintenance

Preventive maintenance steps performed on a regular
basis will enhance the reliability of the instrumentation
systems. However, periodic checks of the semiconductors

Cam Switch Charts

Cam switches on the diagrams are coded on charts to
locate the cam number of the switch contact in the
complete switch assembly, counting from the front, or

JAN 1981

5-1

Maintenance— PG 505

knob end, toward the rear of the switch. The charts
indicate with a solid dot when each contact is closed.

Circuit Board Illustrations

Line illustrations showing component locations keyed
with a grid scheme for each circuit board are usually
placed on the back of a foldout page and sequenced as
close as possible to an associated schematic. The GRID
LOC columns, located near the Parts Location Grid, keys
each component to easy location on the board.

Component and Wiring Color Codes

Color stripes or dots on electrical components signify
electrical values, tolerances, etc., according to EIA stan-
dards. Components not color-coded usually have infor-
mation printed on the body. The wiring coding follows the
same EIA standards with the exception of the ac power
cord of the Power Modules. It is coded like this:

Power Cord Conductor Identification

Conductor

Ungrounded (Line)
Grounded (Neutral)
Grounding (Earthing)

Color

Brown

Blue

Green-Yellow

Alternate Color

Black
White
Green-Yellow

Testing Equipment

Generally, a wide-band oscilloscope, a probe, and a
multimeter are all that is needed to perform basic
waveform and voltage checks for diagnostic purposes.
The calibration procedures list specific test equipment
and the features necessary to adequately check out the
module.

TROUBLESHOOTING TECHNIQUES

Introduction

This troubleshooting procedure is arranged in an order
which checks the simple trouble possibilities before
proceeding to extensive troubleshooting.

Control Settings

Incorrect control settings can appear to be trouble that
does not exist. If there is any question about the correct
function or operation of any control, see the Operating
Instructions section of the manual for the instrument
involved.

System and Associated Equipment

Before proceeding with troubleshooting the TM 500
Series system, check that the instruments in the system

are operating correctly. Checkfor properinterconnection
between the power module and the plug-in modules.
Check the line voltage at the power source. Verify that the
signal is properly connected and that the interconnecting
cables and signal source are not defective.

The associated plug-in modules can be checked for
proper operation quickly by substituting other like units
known to be operating properly. If the trouble persists
after substitution, then the power module is probably at
fault. Moving a properly operating plug-in from compart-
ment to compartment will help determine if one or more
compartments have a problem.

Visual Check

Inspect the portion of the system in which the trouble is
suspected. Many troubles can be located by visual clues
such as unsoldered connections, broken wires, damaged
circuit board, damaged components, etc.

Instrument Calibration

Check the calibration of the suspected plug-in module
or the affected circuit if the trouble is obviously in a certain
circuit. The trouble may only be a result of misadjustment
or may be corrected by re-calibration. Complete calibra-
tion instructions are given in the manual for each instru-
ment in the system.

Circuit Isolation

Note the trouble symptoms. These often identify the
circuit in which the trouble is located. When trouble
symptoms appear in more than one circuit, check the
affected circuits by making waveform and voltage
measurements.

Incorrect operation of all circuits often means trouble
in the power supplies. Using a multimeter, check first for
correct voltages of the individual regulated supplies
according to the plug-in module schematics and calibra-
tion procedures. Then check the unregulated supplies of
the power modules. Defective components elsewhere in
the instruments can appear as power supply problems. In
these instances, suspected circuits should be dis-
connected from apparently bad power supplies one at a
time to narrow the search.

Voltages and Waveforms

Often defective components can be located by using
waveform and voltage indications when they appear on
the schematic or in the calibration procedures. Such
waveforms and voltage labels are typical indications and
will vary between instruments. To obtain operating con-

5-2

(5> JAN 1981

Maintenance— PG 505

ditions similar to those used to take these readings, refer
to the first diagram in the service sections.

low when the meter leads are reversed. Do not check
tunnel diodes or back diodes with an ohmmeter.

Component Checking

If a component cannot be disconnected from its ci rcuit,
then the effects of the associated circuitry must be
considered when evaluating the measurement. Except for
soldered-in transistors and integrated circuits, most com-
ponents can be lifted at one end from the circuit board.

Transistors and IC's. Turn the power switch off before
removing or replacing any semiconductor. See Fig. 5-1.

A good check of transistor operation is actual perfor-
mance under operating conditions. A transistor can most
effectively be checked by substituting a new component
for it (or one which has been checked previously).
However, be sure that circuit conditions are not such that a
replacement transistor might also be damaged. If sub-
stitute transistors are not available, use a dynamic tester.
Static-type testers are not recommended, since they do
not check operation under simulated operating con-
ditions. An anti-static suction-type desoldering tool must
be used to removesoldered-in transistors; see component
replacement procedure for details.

Integrated circuits can be checked with a voltmeter,
test oscilloscope, or by direct substitution. A good
understanding of the circuit description is essential to
troubleshooting circuits using IC's. Operating waveforms,
logic levels, and other operating information for the IC's
are given in the circuit description information of the
appropriate manual. Use care when checking voltages
and waveforms around the IC's so that the adjacent leads
are not shorted together. A convenient means of clipping a
test probe to the 14- and 16-pin in-line IC's is with an
integrated circuit test clip. This device also doubles as an
extraction tool.

DIODE COLOR CODE. The cathode end of each glass
encased diode is indicated by a stripe, a series of stripes,
or a dot. For most silicon or germanium diodes with a
series of stripes, the color code identifies the three
significant digits of the Tektronix Part Number using the
resistor color-code system (e.g., a diode color-coded pink
or blue-, brown - gray - green indicates Tektronix Part
Number 152-0185-00). The cathode and anode ends of
metal-encased diodes can be identified by the diode
symbol marked on the body.

Diodes. A diode can be checked for an open or a short
circuit by measuring the resistance between terminals
with an ohmmeter set to the R X 1k scale. The diode
resistance should be very high in one direction and very

Do not use an ohmmeter scale that has a high
internal current. High currents may damage the
diode. Do not measure tunnel diodes with an
ohmmeter; use a dynamic tester (such as a
TEKTRONIX Type 576 Transistor-Curve Tracer).
Checks on diodes can be performed in much the
same manner as on transistor emitter-to-base junc-
tions. Silicon diodes should have 0.6 to 0.8 volt
across the junction when conducting. Higher
readings indicate that they are either back biased or
defective, depending on polarity.

Resistors. Check the resistors with an ohmmeter.
Resistor tolerances are given in the Replaceable Electrical
Parts List in every manual. Resistors do not normally need
to be replaced unless the measured value varies widely
from the specified value.

Capacitors. A leaky or shorted capacitor can be
detected by checking resistance with an ohmmeter on the
highest scale. Use an ohmmeter that will not exceed the
voltage rating of the capacitor. The resistance reading
should be high after initial charge of the capacitor. An
open capacitor can best be detected with a capacity meter,
or by checking whether it passes ac signals.

PARTS ORDERING AND REPLACING
Ordering

Obtaining Replacement Parts. Most electrical and
mechanical parts can be obtained through your local
Tektronix field office or representative. However, you
should be able to obtain many of the standard electronic
components from a local commercial source in your area.
Before your purchase or order a part from a source other
than Tektronix, Inc., please check the electrical parts list
for the proper value, rating tolerance and description.

Special Parts. Some parts are manufactured or selected
by Tektronix, Inc., to satisfy particular requirements, or
are manufactured for Tektronix, I nc, to our specifications.
Most of the mechanical parts used in this system have
been manufactured by Tektronix, Inc. Order all special
parts directly from the local Tektronix Field Office or
representative.

Ordering Procedure. When ordering replacement parts
from Tektronix, Inc., please include the following infor-
mation:

@ JAN 1981

5-3

Maintenance— PG 505

PLASTIC-CASED TRANSISTORS

E E

METAL-CASED TRANSISTORS

S S

9

G D S

DUAL FETS

SCR

CASE
GROUND

■ PIN 3
(GROUND)
PIN 1 ^ ,., „

(INPUT) PIN 2
1 ' (OUTPUT)

PIN 1
(INPUT)

REGULATOR IC'S

COLLECTOR

SEE MANUFACTURERS
SPECIFICATIONS

POWER TRANSISTORS

HEAT DISSIPATOR
(MAY BE APPLIED TO
SOME METAL-CASED
TRANSISTORS)

4 16

INTEGRATED CIRCUITS

1706-23

Fig. 5-1. Semiconductor device lead configurations found in the
TM 500 family.

5-4

@JAN 1981

Maintenance— PG 505

1. Instrument Type (PS 501, SG 502, DC 501, etc.)

2. Instrument Serial Number (for example, B010251)

3. A description of the part (if electrical include the
circuit number)

4. Tektronix part number

Please do not return any instruments or parts before
receiving directions from Tektronix, Inc.

them to their original sockets. Unnecessary replacement
or switching of semiconductor devices may affect the
calibration of the instruments. When a transistor is
replaced, check the operati on of the part of the i nstrument
that may be affected.

Replacement semiconductors should be of the original
type or a direct replacement. Figure 5-1 shows the lead
configurations of the semiconductors used in this instru-
ment system. When removing sol dered-in transistors, use
a suction-type desoldering tool to remove the solder from
the holes in the circuit board.

A listing of Tektronix Field Offices, Service Centers and
Representatives can be found in the Tektronix Product
Catalog and Supplements.

Replacing

The exploded view drawings associated with the
Replaceable Mechanical Parts List, located to the rear of
most manuals, may be especially helpful when dis-
assembling or reassembling individual components or
sub- assemblies.

Circuit Boards. If a circuit board is damaged beyond
repair, the entire assembly including all soldered-on
components, can be replaced.

An extracting tool should be usedtoremovethe 14- and
16-pin integrated circuits to prevent damage to the pins.
This tool is available from Tektronix, Inc. If an extracting
tool is not available, use care to avoid damaging the pins.
Pull slowly and evenly on both ends of the IC. Trytoavoid
havi ng one end of the I C disengage from the socket before
the other end.

Static-Sensitive Components

Static discharge can damage any semiconductor
component in this instrument.

To remove or replace a board, proceed as follows:

1. Disconnect all leads connected to the board (both
soldered lead connections and solderless pin connec-
tions).

2. Remove all screws holding the board to the chassis
or other mounting surface. Some boards may be held fast
by plastic mounting clips around the board edges. For
these, push the mounti ng cli ps away from the circuit board
edges to free the board. Also, remove any knobs, etc, that
would prevent the board from being lifted out of the
instrument.

3. Lift the circuit board out of the unit. Do not force or
bend the board.

This instrument contains electrical components that
are susceptible to damage from static discharge. See
Table 5-1 for relative susceptibility of various classes of
semiconductors. Static voltages of 1 kV to 30 kV are
common in unprotected environments.

Observe the following precautions to avoid damage:
1. Minimize handling of static-sensitive components.

2. Transport and store static-sensitive components or
assemblies in their original containers, on a metal rail,
or on conductive foam. Label any package that con-
tains static-sensitive assemblies or components.

4. To replace the board, reverse the order of removal.
Use care when replacing pin connectors. If forced into
place incorrectly positioned, the pin connectors may be
damaged.

3. Discharge the static voltage from your body by
wearing a wrist strap while handling these components.
Servicing static-sensitive assemblies or components
should be performed only at a static-free work station
by qualified service personnel.

Transistors and IC's. Transistorsand IC'sshould not be
replaced unless they are actually defective. If removed
from their sockets during routine maintenance, return

4. Nothing capable of generating or holding a static
charge should be allowed on the work station surface.

@ JAN 1981

5-5

Maintenance — PG 505

5. Keep the component leads shorted together when-
ever possible.

6. Pick up components by the body, never by the leads.

7. Do not slide the components over any surface.

8. Avoid handling components in areas that have a
floor or work surface covering capable of generating a
static charge.

9. Use a soldering iron that is connected to earth
ground.

10. Use only special antistatic suction type or wick type
desoldering tools.

Test Equipment

Before using any test equipment to make measure-
ments on static-sensitive components or assemblies, be
certain that any voltage or current supplied by the test
equipment does not exceed the limits of the component to
be tested.

Interconnecting Pins. To replace a pin that is mounted
on a circuit board, first disconnect any pin connectors.
Then, unsolder the damaged pin and pull it out of the
board with a pair of pliers. Be careful not to damage the
wiring on the board with too much heat. Ream out the hole
in the circuit board with a 0.031-inch drill. Remove the
ferrule from the new interconnecting pin and press the
new pin into the hole in the circuit board. Position the pin
in the same manner as the old pin and solder it in. If the old
pin was bent at an angle to mate with a connector, bend
the new pin to match the associated pins.

NOTE

A pin replacement kit including necessary tools,
instructions, and replacement pins is available from
Tektronix, Inc.

Cam Switch Repair and Replacement

A cam switch is an assembly consisting of a cam
rotated by a front panel control, and a set of contracts on
an adjacent circuit board.

Repair of cam switches should be undertaken only
by experienced repair personnel. Switch alignment
and spring tension of the contacts must be carefully
maintained for proper operation of the switch. For
assistance in repair of the cam switches, contact
your local Tektronix Field Office or representative.

Cleaning. If the contact is not obviously damaged, try
cleaning it before replacing. Follow the cleaning
procedures in the order given; the first ones are the
easiest.

When cleaning cam switch contacts:

1. Do not use cleaners, detergents, or lubricants
that leave a residue. The residue can interfere with
the high-frequency response of the contact. Also,
the residue will attract dust and cause the contact to
require frequent cleaning.

2. Do not use any cleaners that contain flurocar-
bons. These will damage the cam portion of the
switch. Flurocarbons also damage the circuit board
material used in some instruments.

3. Do not use anything (such as a cotton swab) that
could snag the contact.

4. Do not scrape the pad. If the gold is removed from
the pad, the pad will oxidize and cause future
problems.

5. Do not bend the contacts. While this may tem-
porarily fix the problem, bending the contact
damages its self-cleaning action and causes
problems in the future.

Use the following procedures to clean the contacts:

1. Operate the switch several times. The wiping action
may clean the contacts.

2. Blow low-pressure air in the area of the contact
while operating the switch.

5-6

@ JAN 1981

Maintenance— PG 505

3. Flush the contact with isopropyl alcohol and blow it
dry with low-pressure air. Isopropyl alcohol is flammable;
avoid its use near open flame or other potential sources of
ignition.

Table 5-1

RELATIVE SUSCEPTIBILITY TO
STATIC DISCHARGE DAMAGE

Semiconductor Classes

Relative

Susceptibility

Levels"

MOS or CMOS microcircuits or

discretes, or linear microcircuits

with MOS inputs (Most Sensitive)

1

ECL

2

Schottky signal diodes

3

Schottky TTL

4

High-frequency bipolar transistors

5

JFETs

6

Linear Microcircuits

7

Low-power Schottky TTL

8

TTL (Lease Sensitive)

9

'Voltage equivalent for levels:

1=100 to 500 V 4 = 500 V 7 = 400 to 1000 V (est.)

2 = 200 to 500 V 5 = 400 to 600 V 8 = 900 V

3 = 250 V 6 = 600 to 800 V 9 = 1200 V

(Voltage discharged from a 100 pFcapacitorthrough a resistance
of 100 ohms.)

@ JAN 1981

5-7

Maintenance— PG 505

Table 5-2

REAR CONNECTOR PIN ASSIGNMENTS

B

A

Not Used

28

Signal
source

28

Not Used

Trigger Out t

27

27

Not Used

Not Used

26

barrier

26

Not Used

Not Used

25

slot

25

Not Used

External Delay Input t

24

24

Not Used

Not Used

23

23

Not Used

Not Used

22

22

Not Used

External Gating Input t

21

21

Not Used

Not Used

20

20

Not Used

Not Used

19

19

Not Used

Not Used

18

18

Not Used

Not Used

17

17

Not Used

Not Used

16

16

Not Used

Not Used

15

15

Not Used

Not Used

14

14

Not Used

25 Vac Winding

*13

13*

25 Vac Winding

+33.5 V Filtered dc

12

12*

+33.5 V Filtered dc

Collector of Series Pass Transistor

"11

11*

Base of Series Pass Transistor

Transformer Shield

10

TM 500

10*

Emitter of Series Pass Transistor

33.5 V Common

9

1 IVI *JW

barrier

9*

33.5 V Common

-33.5 V Filtered dc

* 8

slot

8

-33.5 V Filtered dc

-33.5 V Filtered dc

* 7

7*

Emitter of Series Pass Transistor

Not Used

6

6*

Base of Series Transistor

17.5 Vac Winding

5

5

17.5 Vac Winding

+11.5 V Common

* 4

4

+11.5VCommon

+11.5 V Common

* 3

3

+11.5 V Common

+11.5 V Filtered dc

2

2*

+11.5 V Filtered dc

25 Vac Winding

* 1

1*

25 Vac Winding

B

A

Rear-view of plug-in

* Assignments listed for pins 1A— 13A and 1B — 13B are available in all power modules; however only
those pins marked with an asteiist (*) are used by the PG 505.

f NOTE: Use contacts 9A or 9B for common ground.

5-8

@ JAN 1981

Maintenance— PG 505

Table 5-3
MAINTENANCE AIDS

The following maintenance aids include items required for some maintenance procedures in this instrument. Equivalent
products may be substituted for examples given providing characteristics are similar.

Description

Specifications

Use

Example

1. Soldering Iron

15 Watt

General soldering and
unsoldering

ANTEX PRECISION Model C

2. Screwdriver

Phillips #1 tip

Assembly and Disassembly

Xcelite Model X108

3. Screwdriver

Phillips #2 tip

Assembly and Disassembly

Xcelite Model X102

4. Screwdriver

Three-inch shaft,
3/32 inch flat bit

General

Xcelite R3323

5. Torque Screwdriver

1.5 inch-pounds

FUNCTION switch
assembly

Sturtevant-Richmont
Torque Products Model
PM-5-Roto-Torq

6. Nutdrivers

1/4 inch, 5/16 inch
3/8 inch, 7/16 inch

General

Xcelite #8, #10, #12 and
#14

7. Open End Wrench

11/16 inch

General

8. Solder Wick

Unsoldering

Hex Wik #887-10

9. Lubricant

Versilube

FUNCTION switch
lubrication

Tektronix Part No.
006-1353-00

10. Spray Cleaner

No Noise

FUNCTION switch pad
cleaning

Tektronix Part No.
006-0442-02

11. Vacuum Desoldering
Tool

Antistatic

General

Tektronix Part No.
003-0795-00

12. I.C. Extracting Tool

General

Tektronix Part No.
003-0619-00

13. Cam Switch Repair
Kit

Cam switches

Tektronix Part No.
040-0541-00

14. Extender Cables

General

Tektronix Part No.
067-0645-02

@ JAN 1981

5-9

Section 6— PG 505

OPTIONS

Mod 81 8C. Factory installed grounded output connector.

@ JAN 1981 6-1

Section 7 — PG 505

REPLACEABLE
ELECTRICAL PARTS

PARTS ORDERING INFORMATION

Replacement parts are available from or through your local Tektronix, Inc. Field Office
or representative.

Changes to Tektronix instruments are sometimes made to accommodate improved
components as they become available, and to give you the benefit of the latest circuit
improvements developed in our engineering department. It is therefore important, when
ordering parts, to include the following information in your order: Part number, instrument
type or number, serial number, and modification number if applicable.

If a part you have ordered has been replaced with a new or improved part, your local
Tektronix, Inc. Field Office or representative will contact you concerning any change in part
number.

Change information, if any, is located at the rear of this manual.

SPECIAL NOTES AND SYMBOLS

X0O0 Part first added at this serial number
00X Part removed after this serial number

ITEM NAME

In the Parts List, an Item Name is separated from the description by a colon (:).
Because of space limitations, an Item Name may sometimes appear as incomplete. For
further Item Name identification, the U.S. Federal Cataloging Handbook H6-1 can be
utilized where possible.

ABBREVIATIONS

ACTR

ACTUATOR

PLSTC

PLASTIC

ASSY

ASSEMBLY

QTZ

QUARTZ

CAP

CAPACITOR

RECP

RECEPTACLE

CER

CERAMIC

RES

RESISTOR

CKT

CIRCUIT

RF

RADIO FREQUENCY

COMP

COMPOSITION

SEL

SELECTED

CONN

CONNECTOR

SEMICOND

SEMICONDUCTOR

ELCTLT

ELECTROLYTIC

SENS

SENSITIVE

ELEC

ELECTRICAL

VAR

VARIABLE

INCAND

INCANDESCENT

WW

WIREWOUND

LED

LIGHT EMITTJNG DIODE

XFMR

TRANSFORMER

NONWIR

NON WIREWOUND

XTAL

CRYSTAL

@ JAN 1981

7-1

Replaceable Electrical Parts— PG 505

CROSS INDEX-MFR. CODE NUMBER TO MANUFACTURER

Mfr. Code

Manufacturer

Address

City, State, Zip

00853 SANGAMO ELECTRIC CO., S. CAROLINA DIV .

01121 ALLEN-BRADLEY COMPANY

01295 TEXAS INSTRUMENTS, INC., SEMICONDUCTOR

GROUP

04222 AVX CERAMICS, DIVISION OF AVX CORP.

04713 MOTOROLA, INC., SEMICONDUCTOR PROD . DIV.

07263 FAIRCHILD SEMICONDUCTOR, A DIV. OF

FAIRCHILD CAMERA AND INSTRUMENT CORP.

08806 GENERAL ELECTRIC CO., MINIATURE

LAMP PRODUCTS DEPARTMENT

11237 CTS KEENE, INC.

12697 CLAROSTAT MFG. CO., INC.

13511 AMPHENOL CARDRE DIV., BUNKER RAMO CORP.

14433 ITT SEMICONDUCTORS

14752 ELECTRO CUBE INC.

18324 SIGNETICS CORP.

27014 NATIONAL SEMICONDUCTOR CORP.

56289 SPRAGUE ELECTRIC CO.

71450 CTS CORP.

72982 ERIE TECHNOLOGICAL PRODUCTS, INC.

73138 BECKMAN INSTRUMENTS, INC., HELIPOT DIV.

80009 TEKTRONIX, INC.

90201 MALLORY CAPACITOR CO., DIV. OF

P. R. MALLORY AND CO., INC.

91637 DALE ELECTRONICS, INC.

91836 KINGS ELECTRONICS CO., INC.

P BOX 128

1201 2ND STREET SOUTH

P BOX 5012, 13500 N CENTRAL

EXPRESSWAY

P BOX 867, 19TH AVE. SOUTH

5005 E MCDOWELL RD.PO BOX 20923

464 ELLIS STREET

NELA PARK

3230 RIVERSIDE AVE.

LOWER WASHINGTON STREET

3301 ELECTRONICS WAY

P BOX 3049

1710 S. DEL MAR AVE.

811 E. ARQUES

2900 SEMICONDUCTOR DR.

87 MARSHALL ST.

905 N. WEST BLVD

644 W. 12TH ST.

2500 HARBOR BLVD.

P BOX 500

3029 E. WASHINGTON STREET

P. 0. BOX 372

P. 0. BOX 609

40 MARBLEDALE ROAD

PICKENS, SC 29671
MILWAUKEE, WI 53204

DALLAS, TX 75222
MYRTLE BEACH, SC 29577
PHOENIX, AZ 85036

MOUNTAIN VIEW, CA 94042

CLEVELAND, OH 44112
PASO ROBLES, CA 93446
DOVER, NH 03820
LOS GATOS, CA 95030

WEST PALM BEACH, FL 33402
SAN GABRIEL, CA 91776
SUNNYVALE, CA 94086
SANTA CLARA, CA 95051
NORTH ADAMS, MA 01247
ELKHART, IN 46514
ERIE, PA 16512
FULLERTON, CA 92634
BEAVERTON, OR 97077

INDIANAPOLIS, IN 46206
COLUMBUS, NE 68601
TUCKAHOE, NY 10707

7-2

@ JAN 1981

Replaceable Electrical Parts— PG 505

Ckt No.

Tektronix
Part No.

Serial,
Eff

Model No.
Dscont

Name & Description

Al
Al
Al

C100
C120
C126
C128
C129
CI 30

C132
C134
C156
C175
C180
C180

G181
C182
C182
C184
C184
C186

C186
C187
C188
C188
C198
C210

C250
C252
C254
C254
C256
C258

C334
C340
C350
C360
C370
C386

C390
C392
C514
C534
C545
C550

C555
C557
C564
C566
C580
C598

C610
C620

C640

CR100
CE102

670-2927-00
670-2927-01
670-2927-02

281-0600-00
283-0000-00
283-0660-00
283-0695-00
283-0660-00
285-1066-00

285-1067-00
285-1068-00
283-0000-00
281-0550-00
290-0531-00
290-0297-00

B010100
B022040
B023190

B022039
B023189

CKT BOARD ASSY: MAIN
CKT BOARD ASSY:MAIN
CKT BOARD ASSY: MAIN

B010100
B023190

B023189

290-0830-00 XB023190

285-1052-00 B010100 B023189

285-1068-00 B023I90

285-1051-00 B010100 B023189

285-1067-00 B023190

285-1050-00 B010100 B023189

CAP.
CAP.
CAP.
CAP.
CAP.
CAP.

CAP.
CAP.
CAP.
CAP.
CAP.
CAP.

CAP.
CAP.
CAP.
CAP.
CAP.
CAP.

285-1066-00
283-0646-00
285-1049-00
283-0695-00
281-0519-00
283-0000-00

281-0092-00
281-0549-00
285-0918-00
283-0594-00
285-1049-00
285-1050-00

281-0542-00
281-0658-00
281-0542-00
283-0003-00
283-0003-00
283-0000-00

B023190

XBO23190

B010100

B023190

BOlOipO
B022040

CAP.
CAP.

B023189 CAP.
CAP.
CAP.
CAP.

CAP.
CAP.
B022039 CAP.
CAP.
CAP.
CAP.

CAP.
CAP.
CAP.
CAP.
CAP.
CAP.

B010100 B022039X

283-0057-00 B010100 B022039X CAP.

283-0057-00
281-0546-00
290-0525-00
290-0525-00
290-0525-00

290-0585-00
290-0585-00
281-0546-00
283-0000-00
290-0194-00
290-0525-00

290-0536-00
290-0525-00
290-0159-00

152-0141-02
152-0141-02

XB022040

CAP.
CAP.
CAP.
CAP.
CAP.

CAP.
CAP.
CAP.
CAP.
CAP.
CAP.

CAP.
CAP.
CAP.

FXD.CER DI:35PF,10%,500V
FXD.CER DI:0.001UF, +100-0%, 500V
FXD, MICA D:510PF,2%,500V
FXD.MICA D:4440PF,1% ,300V
FXD.MICA D:510PF,2%,500V
FXD , PLSTC : . 05UF , 1 % , 200V

FXD , PLSTC : . 5UF , 1 % , 200V

FXD , PLSTC : 5HF , 1 % , 200V

FXD.CER DI:0.001UF, +100-0%, 500V

FXD.CER DI:120PF, 10% ,500V

FXD,ELCTLT:100UF,20%,10V

FXD,ELCTLT:39UF,10%,10V

FXD,ELCTLT:10 UF,5%,20V
FXD, PLSTC :10UF,1%,100V
FXD , PLSTC : 5UF , 1 % , 200V
FXD , PLSTC : IDF , 1 % , 200V
FXD, PLSTC :0.5UF,1%, 200V
FXD, PLSTC :0.1UF,1%, 200V

FXD, PLSTC :0.05UF,1%, 200V
FXD.MICA D:170PF,1%,100V
FXD, PLSTC :0.01UF,1%, 200V
FXD.MICA D:4440PF,U,300V
FXD.CER DI:47PF,+/-4.7PF,500V
FXD,CER DI:0.001UF, +100-0%, 500V

VAR.CER DI:9-35PF,200V
FXD.CER DI:68PF,10%,500V
FXD,PLSTC:0.001UF,5%,200 V
FXD.MICA D:0.001UF,1%,100V
FXD , PLSTC : . 01UF , 1 % , 200V
FXD , PLSTC : . 1HF , 1 %, 200V

FXD.CER DI:18PF,10%,500V
FXD.CER DI:6.2PF,+/-0.25PF,500V
FXD.CER DI:18PF,10%,500V
FXD.CER DI:0.01UF, +80-20% ,150V
FXD.CER DI:0.01UF, +80-20%, 150V
FXD.CER DI:0.001UF, +100-0%, 500V

FXD,CER DI:0.1UF, +80-20%, 200V
FXD.CER DI:0.1UF, +80-20%, 200V
FXD.CER DI:330PF,10%,500V
FXD , ELCTLT : 4 . 7UF , 20% , 50V
FXD , ELCTLT : 4 . 7UF , 20% , 50V
FXD , ELCTLT : 4 . 7UF , 20% , 50V

FXD , ELCTLT : 350UF ,+75-10% , 75V
FXD, ELCTLT :350UF, +75-10%, 75V
FXD.CER DI:330PF,10%,500V
FXD.CER DI:0.001UF, +100-0%, 500V
FXD , ELCTLT : 1 OUF , +50-10% , 1 00V
FXD , ELCTLT : 4 . 7UF , 20% , 50V

FXD, ELCTLT :10UF, 20%, 25V
FXD, ELCTLT: 4. 7UF, 20%, 50V
FXD, ELCTLT :2UF, +50-10%, 150V

SEMICOND DEVICE:SILICON,30V,15OMA
SEMICOND DEVICE: SILICON, 30V, 150MA

Mfr

Code

Mfr Part Number

80009

670-2927-00

80009

670-2927-01

80009

670-2927-02

72982

308-000C0G0350K

72982

831-516E102P

00853

D155F511G0

00853

D193F4441F0

00853

D155F511G0

14752

230B1C503F

14752

230B1C504F

14752

230B1C505F

72982

831-516E102P

04222

7001-1373

90201

TDC107M010WLC

56289

150D396X9010B2

56289

150D106X5020BZ

14752

230B1B106F

14752

230B1C505F

14752

230B1C105F

14752

230B1C504F

14752

230B1C104F

14752

230B1C503F

00853

D151E171F0

14752

230B1C103F

00853

D193F4441F0

72982

308-000C0G0470K

72982

831-516E102P

72982

538-011 D9-35

72982

301-000U2J0680K

56289

LP66A1C102J002

00853

D151F102F0

14752

230B1C103F

14752

230B1C104F

72982

301-002COG0180K

72982

301-000C0H0629C

72982

301-002COG0180K

72982

855-558Z5U-103Z

72982

855-558Z5U-103Z

72982

831-516E102P

56289

274C10

56289

274C10

04222

7001-1380

56289

196D475X0050KA1

56289

196D475X0050KA1

56289

196D475X0050KA1

90201

PFP351MNU3P2

90201

PFP351MNU3P2

04222

7001-1380

72982

831-516E102P

56289

30D106F100DC4

56289

196D475X0050KA1

90201

TDC106M025FL

56289

196D475X0050KA1

56289

30D205F150BB9

01295

1N4152R

01295

1N4152R

REV, AUG 1981

7-3

Replaceable Electrical Parts — PG 505

Tektronix Serial/Model No.
Ckt No. Part No. Eff Dscont

Name & Description

Mfr
Code

Mfr Part Number

CR120
CR122
CR154
CR180
CR220
CR222

CR232
CR234
CR236
CR238
CR240
CR244

CR280
CR282
CR320
CR324
CR382
CR392

CR394
CR530
CR542
CR550
CR555
CR557

CR566
CR576
CR580
CR640

DS390
DS540

J100
J170
J 340

Q100
Q102
Q115

Q140
Q142
Q144

Q160
Q160
Q164
Q190
Q200
Q212

Q214

Q220

Q230

Q240

Q260A.B

Q262

Q280
Q286
Q288
Q290
0300

152-0141-02
152-0141-02
152-0141-02
152-0141-02
152-0141-02
152-0141-02

152-0141-02
152-0141-02
152-0141-02
152-0141-02
152-0141-02
152-0141-02

152-0141-02
152-0141-02
152-0141-02
152-0141-02
152-0141-02
152-0061-00 XB022040

152-0061-00
152-0141-02
152-0141-02
152-0141-02
152-0066-00
152-0066-00

152-0141-02
152-0141-02
152-0107-00
152-0107-00

150-0030-00
150-0048-01

131-0955-00
131-0955-00
131-0274-00

151-0342-00
151-0342-00
151-0432-00
151-0192-00
151-0192-00
151-0301-00

151-0432-00
151-0190-00
151-0302-00
151-0432-00
151-0432-00
151-0432-00

151-0432-00
151-0342-00
151-0342-00
151-0432-00
151-1054-00
151-0342-00

151-0432-00
151-0432-00
151-0342-00
151-0432-00
151-0432-00

XB022040

B010100
B022040

B022039

SEMICOND DEVICE:SILICON,30V,150MA
SEMICOND DEVICE : SILICON, 30V, 150MA
SEMICOND DEVICE: SILICON, 30V, 150MA
SEMICOND DEVICE: SILICON, 30V, 150MA
SEMICOND DEVICE:SILICON,30V,150MA
SEMICOND DEVICE: SILICON, 30V, 150MA

SEMICOND DEVICE: SILICON, 30V ,150MA
SEMICOND DEVICE: SILICON, 30V, 150MA
SEMICOND DEVICE:SILICON,30V,150MA
SEMICOND DEVICE: SILICON, 30V, 150MA
SEMICOND DEVICE: SILICON, 30V, 150MA
SEMICOND DEVICE:SILICON,30V,150MA

SEMICOND DEVICE:SILICON,30V,150MA
SEMICOND DEVICE: SILICON, 30V, 150MA
SEMICOND DEVICE:SILICON,30V,150MA
SEMICOND DEVICE: SILICON, 30V, 150MA
SEMICOND DEVICE: SILICON, 30V, 150MA
SEMICOND DEVICE: SILICON, 175V, 100MA

SEMICOND DEVICE: SILICON, 175V, 100MA
SEMICOND DEVICE: SILICON, 30V, 150MA
SEMICOND DEVICE:SILICON,30V,150MA
SEMICOND DEVICE : SILICON , 30V , 1 50MA
SEMICOND DEVICE:SILICON,400V,750MA
SEMICOND DEVICE:SILICON,400V,750MA

SEMICOND DEVICE: SILICON, 30V, 150MA
SEMICOND DEVICE: SILICON, 30V, 150MA
SEMICOND DEVICE:SILICON,400V,400MA
SEMICOND DEVICE:SILICON,400V,400MA

LAMP, GLOW: NEON, T-2, 60 TO 90 VOLTS
LAMP , INCAND : 5V , . 06A , SEL

CONN , RCPT , ELEC : BNC , FEMALE
CONN , RCPT , ELEC : BNC , FEMALE
CONNECTOR, RCPT, :BNC

TRANS ISTOR : SILICON , PNP

TRANSISTOR : S ILICON , PNP

TRANSISTOR: SILICON, NPN

TRANSISTOR: SILICON, NPN, SEL FROM MPS6521

TRANSISTOR:SILICON,NPN,SEL FROM MPS6521

TRANSISTOR : SILICON , PNP

TRANSISTOR:
TRANSISTOR:
TRANSISTOR:
TRANSISTOR:
TRANSISTOR:
TRANSISTOR:

SILICON, NPN
SILICON, NPN
SILICON, NPN
SILICON, NPN
SILICON, NPN
SILICON, NPN

TRANSISTOR: SILICON, NPN

TRANS ISTOR : SILICON , PNP

TRANSISTOR : SILICON , PNP

TRANS ISTOR : SILICON , NPN

TRANSISTOR: SILICON, JFE.N-CHANNEL, DUAL

TRANSISTOR: SILICON, PNP

TRANSISTOR: SILICON, NPN
TRANSISTOR : SILICON , NPN
TRANSISTOR: SILICON, PNP
TRANS ISTOR : S ILICON , NPN

TRANSISTOR: SILICON, NPN

01295 1N4152R

01295 1N4152R

01295 1N4152R

01295 1N4152R

01295 1N4152R

01295 1N4152R

01295 1N4152R

01295 1N4152R

01295 1N4152R

01295 1N4152R

01295 1N4152R

01295 1N4152R

01295 1N4152R

01295 1N4152R

01295 1N4152R

01295 1N4152R

01295 1N4152R

07263 FDH2161

07263

FDH2161

01295

1N4152R

01295

1N4152R

01295

1N4152R

14433

LG4016

14433

LG4016

01295

1N4152R

01295

1N4152R

01295

G727

01295

G727

08806

A2B-T

08806

683AS15

13511

31-279

13511

31-279

91836

KC79-67

07263

S035928

07263

S035928

80009

151-0432-

-00

04713

SPS8801

04713

SPS8801

27014

2N2907A

80009

151-0432-

-00

07263

S032677

07263

S038487

80009

151-0432-

-00

80009

151-0432-

-00

80009

151-0432-

-00

80009

151-0432-

-00

07263

S035928

07263

S035928

80009

151-0432-

-00

80009

151-1054-

-00

07263

S035928

80009 151-0432-00

80009 151-0432-00

07263 S035928

80009 151-0432-00

80009 151-0432-00

7-4

REV, AUG 1981

Replaceable Electrical Parts— PG 505

Tektronix Serial/Model No.
Ckt No. Part No. Eff Dscont

Name & Description

Mfr
Code

Mfr Part Number

Q310
Q316
Q320
Q330

Q346
Q354

Q360
Q370
Q382
Q390
Q394
Q520

Q530
Q550
Q566
Q576
Q580
Q590

Q592
Q610
Q620
Q622
Q642
Q646

R100
R102
R105
R106
R108
R110

R112
R114
R116
R118
R120
R122

R124
R126
R128
R128
R130
R132

R135
R136

R138
R141
R142
R146

R148
R148
R150
R151
R152
R154

R156
R160

R164

151-0432-00
151-0350-00
151-0350-00
151-0347-00
151-0347-00
151-0350-00

151-0350-00
151-0347-00
151-0347-00
151-0350-00
151-0347-00
151-0432-00

151-0342-00
151-0301-00
151-0347-00
151-0342-00
151-0335-00
151-0301-00

151-0432-00
151-0301-00
151-0342-00
151-0302-00
151-0429-00
151-0342-00

315-0103-00
315-0203-00
315-0103-00
321-0214-00
321-0222-00
311-1460-00

315-0103-00
315-0393-00
315-0150-00
315-0102-00
315-0102-00
315-0103-00

315-0473-00
315-0243-00
321-0241-00
321-0193-00
311-1483-00
321-0289-00

311-1560-00
321-0301-00
315-0512-00
315-0511-00
315-0152-00
321-0239-00

321-0301-00
321-0292-00
311-1557-00
321-0243-00
321-0289-00
315-0561-00

315-0332-00
315-0391-00
315-0100-00

B010100
B022040

B022039

XB022040

B010100
B022040

B022039

TRANSISTOR:
TRANSISTOR:
TRANSISTOR:
TRANSISTOR:
TRANSISTOR:
TRANSISTOR:

TRANSISTOR:
TRANSISTOR:
TRANSISTOR:
TRANSISTOR:
TRANSISTOR:
TRANSISTOR:

TRANSISTOR:
TRANSISTOR:
TRANSISTOR:
TRANSISTOR:
TRANSISTOR:
TRANSISTOR:

TRANSISTOR:
TRANSISTOR:
TRANSISTOR:
TRANSISTOR:
TRANSISTOR:
TRANSISTOR:

SILICON, NPN
SILICON, PNP
SILICON, PNP
SILICON, NPN
SILICON, NPN
SILICON, PNP

SILICON, PNP
SILICON, NPN
SILICON, NPN
SILICON, PNP
SILICON, NPN
SILICON, NPN

SILICON, PNP
SILICON, PNP
SILICON, NPN
SILICON, PNP
SILICON, PNP
SILICON, PNP

SILICON.NPN
SILICON, PNP
SILICON, PNP
SILICON.NPN
SILICON, PNP
SILICON, PNP

RES.
RES.
RES.
RES.
RES.
RES.

RES.

RES.
RES.
RES.
RES.
RES.

RES.
RES.
RES.
RES.
RES.
RES.

RES.
RES.
RES.
RES.
RES.
RES.

RES.
RES.
RES.
RES.
RES.
RES.

RES.
RES.
RES.

FXD,CMPSN:10K OHM,5%,0.25W
FXD,CMPSN:20K OHM,5%,0.25W
FXD,CMPSN:10K OHM,5%,0.25W
FXD,FILM:1.65K OHM, 1%,0.125W
FXD,FILM:2K OHM.1%,0. 125W
VAR NONWIR:10K OHM,20%,1W

FXD.CMPSN
FXD.CMPSN
FXD.CMPSN
FXD.CMPSN
FXD.CMPSN
FXD.CMPSN

10K OHM,5%,0.25W
39K OHM,5%,0.25W
15 OHM,5%,0.25W
IK OHM,5%,0.25W
IK OHM,5%,0.25W
10K OHM,5%,0.25W

FXD,CMPSN:47K OHM,5%,0.25W
FXD.CMPSN: 24K OHM,5%,0.25W
FXD,FILM:3.16K OHM,1%,0.125W
FXD,FILM:1K OHM, 1%,0. 125W
VAR,NONWIR:100K OHM,20%,1W
FXD,FILM:10K OHM.U.0.125W

VAR,N0NWIR:5K OHM.20Z.0.50W
FXD,FILM:13.3K OHM,1%,0. 125W
FXD.CMPSN: 5. IK OHM,5%,0.25W
FXD,CMPSN:510 OHM.5Z.0.25W
FXD.CMPSN: 1.5K OHM.52.0.25W
FXD,FILM:3.01K OHM.1%,0. 125W

FXD,FILM:13.3K OHM, 1%,0.125W
FXD,FILM:10.7K OHM,U,0.125W
VAR,NONWIR:25K OHM,20%,0.50W
FXD,FILM:3.32K OHM.1%,0. 125W
FXD,FILM:10K OHM.1%,0. 125W
FXD,CMPSN:560 OHM,5%,0.25W

FXD.CMPSN: 3. 3K OHM.52.0.25W
FXD,CMPSN:390 OHM.5X.0.25W
FXD.CMPSN: 10 OHM.5%,0. 25W

80009 151-0432-00

04713 SPS6700

04713 SPS6700

56289 2N5551

56289 2N5551

04713 SPS6700

04713 SPS6700

56289 2N5551

56289 2N5551

04713 SPS6700

56289 2N5551

80009 151-0432-00

07263 S035928

27014 2N2907A

56289 2N5551

07263 S035928

04713 SJE917

27014 2N2907A

80009 151-0432-00

27014 2N2907A

07263 S035928

07263 S038487

04713 SJE957

07263 S035928

01121

CB1035

01121

CB2035

01121

CB1035

91637

MFF1816G16500F

91637

MFF1816G20000F

01121

73J1G040L103M

01121

CB1035

01121

CB3935

01121

CB1505

01121

CB1025

01121

CB1025

01121

CB1035

01121

CB4735

01121

CB2435

91637

MFF1816G31600F

91637

MFF1816G10000F

01121

73A1G040L104M

91637

MFF1816G10001F

73138

91-82-0

91637

MFF181.6G13301F

01121

CB5125

01121

CB5115

01121

CB1525

91637

MFF1816G30100F

91637

MFF1816G13301F

91637

MFF1816G10701F

73138

91-79-00

91637

MFF1816G33200F

91637

MFF1816G10001F

01121

CB5615

01121

CB3325

01121

CB3915

01121

CB1005

REV, AUG 1981

7-5

Replaceable Electrical Parts— PG 505

Ckt No.

Tektronix Serial/Model No.
Part No. Eff Dscont

Name & Description

R166
R168
R176
R180
R180
R185

R185
R185
R186
R186
R190
R192

R196
R198
R200
R202
R204
R208

R210
R212
R218
R220
R222
R224

R230
R231
R232
R234
R234
R236

R240
R241
R242
R244
R244
R246

R260
R262
R264
R266
R268
R270

R272
R280
R282
R284
R286
R288

R292
R294
R296
R300
R302
R304

R306
R308
R310

315-0201-00
315-0201-00
315-0300-00
311-1563-00
311-1562-00
311-1220-00

B010100 B023189

B023190

B010100 B019999

B022039

311-0170-00 B020000 B023189

311-0580-00 B023190

321-0173-00 B010100 B023189

321-0210-00 B023190
315-0331-00
315-0471-00

321-0201-00
321-0314-00
321-0319-00
315-0473-00
315-0103-00
315-0242-00

315-0153-00
315-0122-00
315-0102-00
315-0122-00
315-0133-00
315-0752-00

311-1365-00
315-0104-00
321-0216-00
321-0252-00
321-0241-00
321-0309-00

311-0580-00
311-1552-00
321-0216-00
321-0252-00
321-0241-00
321-0309-00

315-0102-00
315-0511-00
315-0620-00
301-0332-00
315-0470-00
311-1095-00

315-0511-00
315-0101-00
315-0203-00
315-0512-00
315-0470-00
315-0470-00

321-0256-00
315-0150-00
315-0202-00
315-0133-00
315-0303-00
315-0163-00

321-0268-00
321-0256-00

315-0150-00

XB022040

B010100
B022040

XB022040

B010100
B022040

B022039

B010100 B022039X

RES. ,FXD,CMPSN:200 OHM,5%,0.25W
RES. ,FXD,CMPSN:200 OHM,5%,0.25W
RES. ,FXD,CMPSN:30 OHM,5%,0.25W
RES.,VAR,N0NWIR:1K OHM, 20%, . 50W
RES.,VAR,N0NWIR:2K OHM, 20%, 0. 50W
RES.,VAR,NONWIR:20K OHM, 30%, 0. 25W

RES. ,VAR,NONWIR:PNL,20K OHM.0.5W
RES.,VAR,N0NWIR:50K OHM, 20%,0.50W
RES.,FXD,FILM:619 OHM, 1%,0. 125W
RES., FXD, FILM: 1.5K OHM, 1%,0. 125W
RES. ,FXD,CMPSN:330 OHM,5%,0.25W
RES.,FXD,CMPSN:470 OHM,5%,0.25W

RES., FXD, FILM: 1.21K OHM,1%,0.125W
RES., FXD, FILM: 18. 2K OHM, 1%,0. 125W
RES., FXD, FILM: 20. 5K OHM, 1%,0. 125W
RES.,FXD,CMPSN:47K OHM,5%,0.25W
RES.,FXD,CMPSN:10K OHM,5%,0.25W
RES.,FXD,CMPSN:2.4K OHM,5%,0.25W

RES.,FXD,CMPSN:15K OHM,5%,0.25W
RES.,FXD,CMPSN:1.2K OHM,5%,0.25W
RES.,FXD,CMPSN:1K OHM,5%,0.25W
RES.,FXD,CMPSN:1.2K OHM,5%,0.25W
RES.,FXD,CMPSN:13K OHM,5%,0.25W
RES.,FXD,CMPSN:7.5K OHM,5%,0.25W

RES. ,VAR,N0NWIR:50K OHM,20%,1W
RES.,FXD,CMPSN:100K OHM,5%,0.25W
RES. , FXD, FILM: 1.74K OHM, 1%,0. 125W
RES. ,FXD,FILM:4.12K OHM, 1%,0. 125W
RES.,FXD,FILM:3.16K OHM, 1%,0. 125W
RES. , FXD, FILM: 16. 2K OHM, 1%,0. 125W

RES. ,VAR,NONWIR:50K OHM, 20%,0.50W
RES.,VAR,NONWIR:500K OHM, 20%,0.50K
RES., FXD, FILM :1.74K OHM, 1%,0. 125W
RES.,FXD,FILM:4.12K OHM, 1%,0. 125W
RES.,FXD,FILM:3.16K OHM, 1%,0. 125W
RES.,FXD,FILM:16.2K OHM, 1%,0. 125W

RES.,FXD,CMPSN:1K OHM,5%,0.25W
RES.,FXD,CMPSN:510 OHM,5%,0.25W
RES. ,FXD,CMPSN:62 OHM,5%,0.25W
RES . ,FXD,CMPSN: 3 . 3K OHM, 5% ,0 . 50W
RES. ,FXD,CMPSN:47 OHM,5%,0.25W
RES. ,VAR,NONWIR:10K OHM, 20%, 0. 50W

RES.,FXD,CMPSN:510 OHM,5%,0.25W
RES.,FXD,CMPSN:100 OHM,5%,0.25W
RES.,FXD,CMPSN:20K OHM,5%,0.25W
RES.,FXD,CMPSN:5.1K OHM,5%,0.25W
RES.,FXD,CMPSN:47 OHM,5%,0.25W
RES. ,FXD,CMPSN:47 OHM,5%,0.25W

RES. ,FXD,FILM:4.53K OHM, 1%,0. 125W
RES.,FXD,CMPSN:15 OHM,5%,0.25W
RES.,FXD,CMPSN:2K OHM,5%,0.25W
RES.,FXD,CMPSN:13K OHM,5%,0.25W
RES.,FXD,CMPSN:30K OHM,5%,0.25W
RES. ,FXD,CMPSN:16K OHM,5%,0.25W

RES., FXD, FILM: 6. 04K OHM,1%,0. 125W
RES. ,FXD,FILM:4.53K OHM,1J!,0. 125W

RES . , FXD , CMPSN: 1 5 OHM , 5% , . 25W

Mfr

Code

Mfr Part Number

01121

CB2015

01121

CB2015

01121

CB30O5

73138

91-85-0

73138

91-84-0

71450

OBD

12697

381-CM26546

11237

300SF-41695

91637

MFF1816G619R0F

91637

MFF1816G15000F

01121

CB3315

01121

CB4715

91637 MFF1816G12100F

91637 MFF1816G18201F

91637 MFF1816G20501F

01121 CB4735

01121 CB1035

01121 CB2425

01121

CB1535

01121

CB1225

01121

CB1025

01121

CB1225

01121

CB1335

01121

CB7525

01121

11M164

01121

CB1045

91637

MFF1816G17400F

91637

MFF1816G41200F

91637

MFF1816G31600F

91637

MFF1816G16201F

11237 300SF-41695

73138 91-74-0

91637 MFF1816G17400F

91637 MFF1816G41200F

91637 MFF1816G31600F

91637 MFF1816G16201F

01121 CB1025

01121 CB5115

01121 CB6205

01121 EB3325

01121 CB4705

12697 382-CM40386

01121 CB5115

01121 CB1015

01121 CB2035

01121 CB5125

01121 CB4705

01121 CB4705

91637 MFF1816G45300F

01121 CB1505

01121 CB2025

01121 CB1335

01121 CB3035

01121 CB1635

91637 MFF1816G60400F

91637 MFF1816G45300F

01121 CB1505

7-6

REV. AUG 1981

Replaceable Electrical Parts — PG 505

Ckt No.

Tektronix Serial/ Model No.
Part No. Eff Dscont

Name & Description

Mfr
Code

Mfr Part Number

R314

315-0362-00

RES., I

R316

315-0302-00

RES.,1

R320

315-0751-00

RES. ,1

R324

315-0822-00

RES. ,1

R326

315-0152-00

RES.,1

R330

315-0751-00

RES. ,1

R334

315-0150-00

RES. ,1

R336

315-0470-00

RES. ,1

R340

321-0314-00

RES.,1

R342

308-0293-00

RES. ,1

R346

315-0470-00

RES. ,]

R350

315-0150-00

RES.,]

R354

315-0103-00

RES.,]

R359

321-0243-00

RES. ,1

R360

311-1560-00

RES. ,1

R361

321-0331-00

RES.,1

R369

321-0243-00

RES.,1

R370

311-1560-00

RES.,'

R371

321-0331-00

RES.,1

R380

315-0223-00

RES.,1

R382

315-0434-00

RES.,!

R386

315-0563-00

RES.,1

R388

315-0563-00

RES.,

R390

315-0334-00

RES.,

R392

315-0563-00

RES.,

R394

315-0205-00 XB022040

RES. ,

R396

315-0104-00

RES. ,

R500

307-0093-00

RES. ,

R510

315-0150-00

RES. ,

R512

315-0621-00

RES.,

R514

315-0132-00

RES.,

R516

315-0132-00

RES.,

R518

321-0252-00

RES.,

R520

311-1564-00

RES.,

R522

321-0222-00

RES.,

R528

315-0822-00

RES.,

R530

315-0470-00

RES.,

R532

315-0150-00

RES.,

R534

315-0102-00

RES.,

R540

315-0150-00

RES.,

R542

315-0132-00

RES.,

R545

301-0104-00

RES.,

R550

315-0132-00

RES.,

R552

315-0472-00

RES.,

R555

315-0104-00

RES.,

R557

315-0104-00

RES.,

R560

315-0150-00

RES.,

R562

315-0621-00

RES. ,

R564

315-0472-00

RES.,

R566

315-0243-00

RES. ,

R568

321-0343-00

RES. ,

R570

311-1562-00

RES. ,

R572

321-0343-00

RES.,

R574

301-0133-00

RES. ,

R576

315-0470-00

RES. ,

R578

315-0150-00

RES.,

R579

303-0162-00

RES.,

FXD,CMPSN:3.6K OHM,5X,0.25W
FXD,CMPSN:3K OHM,5%,0.25W
FXD,CMPSN:750 OHM,5%,0.25W
FXD,CMPSN:8.2K OHM,5%,0.25W
FXD,CMPSN:1.5K OHM,5%,0.25W
FXD,CMPSN:750 OHM,5%,0.25W

FXD,CMPSN:15 OHM,5%,0.25W
FXD,CMPSN:47 OHM,5%,0.25W
FXD,FILM:18.2K OHM, 1%,0. 125W
FXD,WW:4K OHM,5%,3W
FXD,CMPSN:47 OHM,5%,0.25W
FXD,CMPSN:15 OHM,5%,0.25W

FXD,CMPSN:10K OHM,5%,0.25W
FXD,FILM:3.32K OHM, 1%,0. 125W
VAR,N0NWIR:5K OHM, 20%, 0. 50W
FXD,FILM:27.4K OHM, 1%,0.125W
FXD,FILM:3.32K OHM, 1%,0. 125W
VAR,N0NWIR:5K OHM,20%,0.50W

FXD,FILM:27.4K OHM, 1%,0. 125W
FXD,CMPSN:22K OHM,5%,0.25W
FXD,CMPSN:430K OHM,5%,0.25W
FXD,CMPSN:56K OHM,5%,0.25W
FXD,CMPSN:56K OHM,5%,0.25W
FXD,CMPSN:330K OHM,5%,0.25W

FXD,CMPSN:56K OHM,5%,0.25W
FXD,CMPSN:2M OHM,5%,0.25W
FXD,CMPSN:100K OHM,5%,0.25W
FXD,CMPSN:1.2 OHM,5%,0.50W
FXD,CMPSN:15 OHM,5%,0.25W
FXD,CMPSN:620 OHM,5%,0.25W

FXD,CMPSN:1.3K OHM,5%,0.25W
FXD,CMPSN:1.3K OHM,5%,0.25W
FXD,FILM:4.12K OHM,1%,0.125W
VAR,N0NWIR:TRMR,500 OHM.0.5W
FXD,FILM:2K OHM,1%,0. 125W
FXD,CMPSN:8.2K OHM,5%,0.25W

FXD,CMPSN:47 OHM,5Z,0.25W
FXD,CMPSN:15 OHM,5%,0.25W
FXD,CMPSN:1K OHM,5%,0.25W
FXD,CMPSN:15 OHM,5%,0.25W
FXD,CMPSN:1.3K OHM,5%,0.25W
FXD,CMPSN:100K OHM,5%,0.5W

FXD,CMPSN:1.3K OHM,5%,0.25W
FXD,CMPSN:4.7K OHM,5%,0.25W
FXD,CMPSN:100K OHM,5%,0.25W
FXD,CMPSN:100K OHM,5%,0.25W
FXD,CMPSN:15 OHM,5%,0.25W
FXD,CMPSN:620 OHM,5%,0.25W

FXD,CMPSN:4.7K OHM,5%,0.25W
FXD,CMPSN:24K OHM,5%,0.25W
FXD,FILM:36.5K OHM, 1%,0. 125W
VAR,N0NWIR:2K OHM, 20%, 0. SOW
FXD,FILM:36.5K OHM,1%,0. 125W
FXD,CMPSN:13K OHM,5%,0.50W

FXD,CMPSN:47 OHM,5%,0.25W
FXD,CMPSN:15 OHM,5%,0.25W
FXD,CMPSN:1.6 0HM,5%,1W

01121 CB3625

01121 CB3025

01121 CB7515

01121 CB8225

01121 CB1525

01121 CB7515

01121 CB1505

01121 CB4705

91637 MFF1816G18201F

91637 RS2B-B40000J

01121 CB4705

01121 CB1505

01121 CB1035

91637 MFF1816G33200F

73138 91-82-0

91637 MFF1816G27401F

91637 MFF1816G33200F

73138 91-82-0

91637 MFF1816G27401F

01121 CB2235

01121 CB4345

01121 CB5635

01121 CB5635

01121 CB3345

01121 CB5635

01121 CB2055

01121 CB1045

01121 EB12G5

01121 CB1505

01121 CB6215

01121 CB1325

01121 CB1325

91637 MFF1816G41200F

73138 91-86-0

91637 MFF1816G20000F

01121 CB8225

01121 CB4705

01121 CB1505

01121 CB1025

01121 CB1505

01121 CB1325

01121 EB1045

01121 CB1325

01121 CB4725

01121 CB1045

01121 CB1045

01121 CB1505

01121 CB6215

01121 CB4725

01121 CB2435

91637 MFF1816G36501F

73138 91-84-0

91637 MFF1816G36501F

01121 EB1335

01121 CB4705

01121 CB1505

01121 GB1625

REV, AUG 1981

7-7

Replaceable Electrical Parts— PG 505

Ckt No.

Tektronix Serial/Model No.
Part No. Eff Dscont

Name & Description

Mfr
Code

Mfr Part Number

R580
R590
R592
R594
R596
R598

R610
R611
R612
R614
R615
R617

R620
R624
R626
R628
R630
R640

R642
R644
R646
R648
R650
R652

R656
R658
R660

315-0150-00
305-0621-00
315-0102-00
321-0301-00
321-0289-00
315-0393-00

315-0512-00
301-0182-00
315-0102-00
321-0268-00
311-1562-00
321-0326-00

315-0393-00
321-0289-00
321-0301-00
315-0102-00
308-0314-00
308-0314-00

307-0114-00
315-0470-00
315-0362-00
315-0562-00
315-0472-00
301-0562-00

321-0256-00
311-1562-00
321-0343-00

S130A.B 263-1015-00

S250 260-1607-00

S250 260-1423-00

S290 260-1445-00

T190

U175
U610

VR112
VR120
VR210
VR220
VR222
VR520

VR534
VR542
VR550
VR610
VR646
VR650

120-0900-00

156-0081-00
156-0158-00

152-0279-00
152-0278-00
152-0282-00
152-0514-00
152-0514-00
152-0280-00

152-0168-00
152-0279-00
152-0280-00
152-0282-00
152-0282-00
152-0461-00

RES. ,FXD,CMPSN:15 OHM,5%,0.25W
RES.,FXD,CMPSN:620 OHM,5%,2W
RES. ,FXD,CMPSN:1K OHM,5%,0.25W
RES.,FXD,FILM:13.3K OHM, 1%,0. 125W
RES.,FXD,FILM:10K OHM, 1%,0. 125W
RES.,FXD,CMPSN:39K 0HM,5%,0.25W

RES. ,FXD,CMPSN:5.1K OHM,5%,0.25W
RES. ,FXD,CMPSN:1.8K OHM,5%,0.5W
RES.,FXD,CMPSN:1K OHM,5%,0.25W
RES.,FXD,FILM:6.04K OHM,1%,0. 125W
RES. ,VAR,N0NWIR:2K OHM,20%,0.50W
RES. ,FXD,FILM:24.3K OHM,1%,0. 125W

RES.,FXD,CMPSN:39K OHM,5%,0.25W
RES.,FXD,FILM:10K OHM,1%,0.125W
RES. ,FXD,FILM:13.3K OHM,1%,0. 125W
RES. ,FXD,CMPSN:1K 0HM,5%,0.25W
RES.,FXD,WW:680 0HM,5%,3W
RES.,FXD,WW:680 0HM,5%,3W

RES.,FXD,CMPSN:6.2 OHM,53;,0.25W
RES.,FXD,CMPSN:47 OHM,5%,0.25W
RES.,FXD,CMPSN:3.6K OHM,5%,0.25W
RES.,FXD,CMPSN:5.6K OHM,5%,0.25W
RES.,FXD,CMPSN:4.7K OHM,5%,0.25W
RES.,FXD,CMPSN:5.6K OHM,5%,0.50W

RES.,FXD,FILM:4.53K OHM,1%,0. 125W
RES.,VAR,N0NWIR:2K OHM , 20% , . 50W
RES.,FXD,FILM:36.5K OHM, 1%,0. 125W

SW CAM ACTR AS: PERIOD
B010100 B020649 SWITCH, PUSH: 1US/10US/100US/1MS
B020650 SWITCH, PUSH:4 STA, INTERLOCK, NON-SHORT

SWITCH, PUSH: 1 STA, NON-SHORT

XMFR,TOROID:TWO 6 TURN WINDINGS

MICROCIRCUIT,LI:SGL RETRIGGERABLE MV
MICROCIRCUIT,LI:DUAL OPERATIONAL AMPLIFIER

SEMICOND DEVICE:ZENER,0.4W,5.1V,5%
SEMICOND DEVICE:ZENER,0.4W,3V,5%
SEMICOND DEVICE:ZENER,0.4W,30V,5%
SEMICOND DEVICE:ZENER,0.4W,10V,1%
SEMICOND DEVICE :ZENER,0.4W, 10V, 1%
SEMICOND DEVICE: ZENER.0.4W, 6.2V, 5%

SEMICOND DEVICE:ZENER,0.4W,12V,5%
SEMICOND DEVICE:ZENER,0.4W,5.1V,5%
SEMICOND DEVICE :ZENER,0.4W, 6. 2V,5Z
SEMICOND DEVICE:ZENER,0.4W,30V,5%
SEMICOND DEVICE :ZENER,0.4W, 30V, 5%
SEMICOND DEVICE:ZENER,0.4W,6.2V,5%

01121 CB1505

01121 HB6215

01121 CB1025

91637 MFF1816G13301F

91637 MFF1816G10001F

01121 CB3935

01121

CB5125

01121

EB1825

01121

CB1025

91637

MFF1816G60400F

73138

91-84-0

91637

MFF1816G24301F

01121

CB3935

91637

MFF1816G10001F

91637

MFF1816G13301F

01121

CB1025

91637

RS2B-B680R0J

91637

RS2B-B680R0J

01121

CB62G5

01121

CB4705

01121

CB3625

01121

CB5625

01121

CB4725

01121

EB5625

91637

MFF1816G45300F

73138

91-84-0

91637

MFF1816G36501F

80009 263-1015-00

80009 260-1607-00

80009 260-1423-00

80009 260-1445-00

80009 120-0900-00

07263

9601 (PC OR DC)

18324

MC1458N

04713

SZG35010RL

04713

SZG35009K20

04713

1N972B

80009

152-0514-00

80009

152-0514-00

80009

152-0280-00

04713

SZG35009K4

04713

SZG35010RL

80009

152-0280-00

04713

1N972B

04713

1N972B

04713 1N821

7-8

REV DEC 1981

BLOCK DIAGRAM

NON-FLOATING CIRCUITRY

CUSTOM OR
AVAILABLE AT INTERNAL SELECTED

REAR INTERFACE TIMING CAPACITOR

CONNECTOR ONLY /

FLOATING CIRCUITRY

TRIG
OUT

EXTERNAL

GATING

INPUT

_ PERIOD
GENERATOR

• — c»~o-*-

1

TRIGGER
OUTPUT

rh

PERIOD

'<&

DURATION
GENERATOR

DELAY PICKOFF/
TRIGGER COMPARATOR

*Xv—

DURATION

VARIABLE

OUTPUT
DELAY

+ 12.6 V +5V

+ 20 V

1_

-6V

GROUND REFERENCE
POWER SUPPLY

V=Z

POWER

RISE TIME &

FALL TIME

CURRENT

SWITCH

RISE TIME &
FALL TIME
CURRENT
SOURCES

CUSTOM OR
U INTERNAL SELECTED
TIMING CAPACITOR

\

\

RISE
AND |_
FALL
TIMES

INTERNAL
SELECTED
■ TIMING
CAPACITOR
FOR RISE TIME
AND FALL TIME

AMPLITUDE

+ 20V -10V

4 -20 V

+ 48 V T i -48 V

+ 65 V UNREG

T

/ + PULSE

OUTPUT
AMPLIFIER

-65 V UNREG

FLOATING POWER
SUPPLIES

CAUTION

OUTPUT

REV A FEB 1981

BLOCK DIAGRAM

fRY

TRIG
OUT

PERIOD
NERATOR

i

TRIGGER
OUTPUT

m

i

DURATION
GENERATOR

DURATION

VARIABLE

+ 12.6 V +5V

OV

-6V

GROUND REFERENCE
POWER SUPPLY

v^

POWER

rO-'Ch

SIGNAL
RESTORER

FLOATING CIRCUITRY

RISE TIME &

FALL TIME

CURRENT

SWITCH

RISE TIME &
FALL TIME
CURRENT
SOURCES

CUSTOM OR
U INTERNAL SELECTED
TIMING CAPACITOR

\

\

\

RISE

AND

FALL

TIMES

3

\

\

\

\

PULSE
DURATION

INTERNAL
SELECTED
— TIMING
CAPACITOR
FOR RISE TIME
AND FALL TIME

AMPLITUDE""!

<-v / + PULSE

r%\ —

+ 20 V -10 V

i -20 V
+48 V T 4 -48 V

65 V UNREG

I

OUTPUT
AMPLIFIER

-65 V UNREG

FLOATING POWER
SUPPLIES

CAUTION

I OUTPUT

1583-11

REV A FEB 1981

ADJUSTMENT LOCATIONS

PG505

R520 R570

GROUND REFERENCED TEST POINTS

R180

R150

R135

C250

R658 R615

FLOATING GROUND REFERENCED TEST POINTS

Section 8— PG 505

DIAGRAMS AND CIRCUIT BOARD ILLUSTRATIONS

Symbols

Graphic symbols and class designation letters are
based on ANSI Standard Y32.2-1975.

Logic symbology is based on ANSI Y32.14-1973 in
terms of positive logic. Logic symbols depict the logic
function performed and may differ from the manufac-
turer's data.

Theoverline on a signal name indicates that the signal
performs its intended function when it is in the low state.

Abbreviations are based on ANSI Y1. 1-1972.

Other ANSI standards that are used in the preparation
of diagrams by Tektronix, Inc. are:

Y14.15, 1966 Drafting Practices.

Y14.2, 1973 Line Conventions and Lettering.

Y10.5, 1968 Letter Symbols for Quantities Used in

Electrical Science and Electrical

Engineering.

American National Standard Institute

1430 Broadway

New York, New York 10018

Component Values

Electrical components shown on the diagrams are in
the following units unless noted otherwise:

Capacitors = Values one or greater are in picofarads (pF).

Values less than one are in microfarads

(i"F).
Resistors = Ohms (Q).

The information and special symbols below may appear in this manual.'

Assembly Numbers and Grid Coordinates

Each assembly in the instrument is assigned an
assembly number (e.g., A20). The assembly number
appears on the circuit board outline on the diagram, i n the
title for the circuit board component location illustration,
and in the lookup table for the schematic diagram and
corresponding component locator illustration. The
Replaceable Electrical Parts list is arranged by assemblies
in numerical sequence; the components are listed by
component number *(see following illustration for
constructing a component number).

The schematic diagram and circuit board component
location illustration have grids. A lookup table with the
grid coordinates is provided for ease of locating the
component. Only the components illustrated on the facing
diagram are listed in the lookup table. When more than
one schematic diagram is used to illustratethe circuitry on
a circuit board, the circuit board illustration may only
appear opposite the first diagram on which it was il-
lustrated; the lookup table will list the diagram number of
other diagrams that the circuitry of the circuit board
appears on.

Function Block Title

Cam Switch
Closure Chart
(Dot indicates
switch closure)

Etched Circuit Board

Outlined in Black

Refer to Waveform

Function Block
Outline

Modified Component—
(Depicted in grey.or with
grey outline) See Parts List

Strap or Link

Assembly Number

Tektronix Part No.
for circuit boards

Plug to E.C Board

JJJ30

y) |SYNC| ^>-~ I Boxl - Identifies Panel

Controls, Connectors and
ndicators

Coaxial connectors:

male

female

Plug Index; signifies pin No. 1

11k | bal (S)[ External Screwdriver Adj.

Shielding

Selected value, see Parts List
and Maintenance Section for
Selection Criteria

Decoupled or Filtered
Voltage

Refer to Diagram Number

Schematic Name
and Number

« Mfl ol %[«TPSb4e EkOTiCll FVB Ul

REV C FEB 1981

PG505

I B Y

H

K

M

1 n y

s s

CR392
\Q390

1583-13A

®

Static Sensitive Devices

See Maintenance Section

CIRCUIT BOARD PARTS LOCATION

COMPONENT NUMBER EXAMPLE

Component Number

I " N

A23A2 .R1234

I Schematic

-J * Lr L- •* Circuit

Subassembly Nmber
Number (if used)

Chassis- moutted components have no Assemb'y Number
profix— see e"d c r Pepiaceab'e E'ect^'cai Part? Vsi.

REV JUL 1981

B

Table 8-1

P/0 A1 ASSY

GENERATOR AND TRIGGER ^S

CIRCUIT

SCHEMATIC

BOARD

CIRCUIT

SCHEMATIC

BOARD

NUMBER

LOCATION

LOCATION

NUMBER

LOCATION

LOCATION

C100

B3

E1

R118

C4

G1

C120

C5

H1

R120

B5

B2

C126

D6

K3

R122

B6

F1

C128

D6

J3

R124

B6

J1

C129

D5

K3

R126

C5

H1

C130

D6

K4

R128

E6

L1

C132

E6

L3

R132

E7

M2

C134

E6

L4

R135

F7

M2

C156t

H5

J1

R136

F7

M2

C175

K4

G3

R138

F6

J1

C180

H3

J3

R141*

F5

L1

C181t

H3

J3

R142

F5

K1

C182

H3

G4

R146

G6

J1

C184

H3

G4

R148

F5

K1

C186

H4

G3

R150

F6

L1

C187t

H4

K3

R151

F6

K1

C188

H4

H3

R.152

F6

L1

CR100

B3

E2

R154

H5

J1

CR102

B3

E1

R156

H5

J1

CR120

C5

H1

R160

J5

F2

CR122

B6

H1

R164

K5

F2

CR154

G5

J1

R166

K5

F3

CR180

H3

H4

R168

K5

E1

Q100

B3

F1

R176

G4

G3

Q102

C3

G1

R180

G2

G4

Q115

C5

H1

R186

H2

G4

Q140

E6

L1

Q142

F5

K1

S130B

F1

H2

Q144

G5

K1

Q160

J5

F3

U175

H4

F2

Q164

K5

F3

VR112

B5

F1

R100

B3

E1

VR120

D5

H1

R102

B3

F1

R105

C3

G1

J100

A3

CHASSIS

R106

C3

G1

J 170

L5

CHASSIS

R108

D3

G1

R110

C3

CHASSIS

R112

B5

F1

R130

E7

CHASSIS

R114tt

B4

G1

R185

G2

CHASSIS

R116

C5

G1

P/0 A1 ASSY also shown on ^^ & OO

1

* See Parts List for
serial number ranges.

tLocated on back of board.

ttMoved to back of board (eff.SN B020890-up).

8

Ipulse duration I

(REAR) 5I30B

+ 20V

EARLIER
' il ' ' \UteSER
J ' ,i " OF PARTS ; ,, .
OH DSflCTi™ <"v ?>

5
I

4

7

6
-I..

3

Z.

9

1

•

•

•

•

•

•

•

•

PS 505

| period]

S130A (FRONT)

REV NOV 1961

1583-14

B

H

K

>

D
ON

|PULSE DURATION |
(REAR) SI30B

— — _ — — — — — — _ *

— — — _i____ _ •
?____ •. •

_ *. _ _"_"_"•.'_"_ _ i

_•__ !___£. •

— — — ul _____ ± _ _

ccw

LOCKED ON

5^S
50>iS

5m5
5mS
50mS
CUSTOM
EXT DURATION

JS
US
US

;is
us

8

5
1

4

7
1

|

3

e

9

1

lo

6

•

•

•

•

•
•
• *

•
•
•

•

•

•

•

•
•

•
•
•

JjOCKED ON)
10^5 (lOOkHz.)
ClmS (10 kHs)
ImS (I kHj)
lOtnS (100 H$
QJSdOHz.)

Custom)
output delated

COMPONENT NUMBER EXAMPLE

Component Number

, " N

A23A2R1234,

Assembly ^ i __

Number Subassembly

Number (if used)

Schematic
- Circuit
Number

®

Static Sensitive Devices

See Maintenance Section

Chassis-mounted components have no Assemblv Number
prefix— see end of Replaceable Electrical Parts List.

PS 505

| period!

S130A (FRONT)

REV NOV 1981
1583-14

GENERATORS AND TRIGGER <J>

Table 8-2

P/0A1 ASSY

OUTPUT <2\

CIRCUIT

SCHEMATIC

BOARD

CIRCUIT

SCHEMATIC

BOARD

CIRCUIT

SCHEMATIC

BOARD

NUMBER

LOCATION

LOCATION

NUMBER

LOCATION

LOCATION

NUMBER

LOCATION

LOCATION

C198

B4

F4

Q330

J3

J4

R310

H3

K5

C210

B4

F4

Q346

K2

L4

R314

H3

J5

C250

D4

L4

Q354

K3

M4

R316

J2

K4

C252

E4

L4

Q360

J5

L5

R320

J2

K4

C254

E4

M4

Q370

J6

L5

R324

J3

K4

C256

E5

M4

Q382

H7

M1

R326

J4

L4

C258

F4

M3

Q390

J7

N1

R330

J4

J4

C334

J4

L4

Q394

J7

N1

R334

K4

M5

C340

K3

K4

R336

K3

M5

C350

J2

L4

R190

A4

F3

R340

K3

K4

C360

K4

L6

R192

A4

F3

R342

K3

M5

C370

K6

M5

R196

A3

F4

R346

K2

M5

C386*

H7

N1

R198

B3

F4

R350

K2

M5

C390*

H7

M1

R200

B4

F4

R354

K5

M6

C392*t

H8

M1

R202

B4

F4

R359

J4

M6

R204

B4

F4

R360

J5

M6

CR220

D3

G6

R208

B3

F4

R361

J5

M6

CR222

C3

G4

R210

C4

F5

R369

J6

M5

CR232

D2

G4

R212

C4

F5

R370

J6

M5

CR234

D3

G4

R218

C3

F5

R371

J6

M5

CR236

D3

H4

R220

C2

F5

R380

G7

M3

CR238

D3

G5

R222

C3

F6

R382

G8

N3

CR240

D3

H5

R224

C4

F5

R386

H7

M1

CR244

04

G5

R231't

D2

G5

R388

H7

M1

CR280

G3

J5

R232

D2

G4

R390

J7

M2

CR282

G3

J5

R234'

D2

F4

R392

J7

N2

CR320

J2

K4

R236

D2

G4

R394*t

J8

M2

CR324

J3

K4

R241*t

D3

G5

R396

J7

N1

CR382

H8

M3

R242

D4

G4

CR392*t

H7

N1

R244

D4

G5

S130A

K2

CR394"f

J8

M2

R246

D4

G5

S130B

B5

H2

R260

E3

H5

S250A

G5

M4

Q190

B4

F4

R262

E3

H5

S250B

G5

M4

Q200

B3

F4

R264

E3

H5

S250C

G5

M4

Q212

C4

F5

R266

E3

H5

S250D

G6

M5

Q214

C3

F6

R268

F3

H5

S290

H1

L5

Q220

C3

F6

R272'

F3

H5

Q230

D2

G5

R280

F3

H4

T190

A4

F3

Q240

D4

G5

R282

G2

H5

Q260A

E3

H4

R284

F4

J5

VR210

B3

F5

Q260B

E3

H4

R286

G3

J5

VR220

D2

G5

Q262

E3

H5

R288

G3

J5

VR222

D4

G4

Q280

F3

H5

R292

H3

J5

Q286

G2

J4

R294

H3

K6

DS390

J7

CHASSIS

Q288

G3

J6

R296

H2

K5

J340

L3

CHASSIS

Q290

H3

J6

R300

H4

K5

R230

D1

CHASSIS

Q300

H4

K5

R302

H4

K5

R240

D5

CHASSIS

Q310

H3

J5

R304

H4

K5

R270

F3

CHASSIS

Q316

J3

J5

R306

J3

K5

Q320

J2

J5

R308

J3

K5

P/0 A1 ASSY also shown on ^N & ^N

*See Parts List for
serial number ranges.

tLocated on back of board.

B

1

+20V(F)

+20V(F)

SI3OB-I0 (DURATION)
CLOSED IN "LOCKED ON"

SS£ PARTS LIST FOR EARLIER
VALUES AND SERIAL NUMBER

ranges rr n :i»e;

OR Zir"- > GREY.

COMPONENT NUMBER EXAMPLE

Assembly
Number

Component Number
A23A2 R1234

J Schematic

Subassembly Nmber

Number (it used)

Chassis-mounted components have no Assembly Number
preFn — see era! of Replaceable Electrical Parts List.

®

Static Sensitive Devices

See Maintenance Section

8

PS 505

1 583 -IS
REV NOV l<5S\

OUTPUT ^\

THEMATIC

BOARD

OCATION

LOCATION

H3

K5

H3

J5

J2

K4

J2

K4

J3

K4

J4

L4

J4

J4

K4

M5

K3

M5

K3

K4

K3

M5

K2

M5

K2

M5

K5

M6

J4

M6

J5

M6

J5

M6

J6

M5

J6

M5

J6

M5

G7

M3

G8

N3

H7

M1

H7

M1

J7

M2

J7

N2

J8

M2

J7

N1

K2

B5

H2

G5

M4

G5

M4

G5

M4

G6

M5

H1

L5

A4

F3

B3

F5

D2

G5

D4

G4

J7

CHASSIS

L3

CHASSIS

D1

CHASSIS

D5

CHASSIS

F3

CHASSIS

B

H

K

1

8

+20V(F)

+46V(F)

+48V(F)

+eov(F)

COMPONENT NUMBER EXAMPLE

Component Number

A23A2R1234

Assembly
Number

Subassembly
Number (if used)

chematic

Circuit

Number

Chassis- mounted components have no Assembly Number
prefix— see end of Replaceable Electrical Parts List

®

Static Sensitive Devices

See Maintenance Section

R3SO

22 k

-3>

J340
OUTPUT

+48V00

+4-8V0O

+fc5V(F)

+feSV(F)

■SBSS34

R3S8
5fck

ra& 3 i-'SiSi

5fck

Q382

I — P^

R382 4

43ok > I Kl— . ■

[ CR382.
-M8V(F) V

PS505

IS83-IS
REV NOV 1981

OUTPUT<|>

B

Table 8-3

P/0 A1 AJ

»SY

POWER SUPPLY ^^

CIRCUIT

SCHEMATIC

BOARD

CIRCUIT

SCHEMATIC

BOARD

NUMBER

LOCATION

LOCATION

NUMBER

LOCATION

LOCATION

C514

C3

B4

R550

C7

A4

C534

D4

B2

R552

C7

A5

C545

B6

F2

R555

F2

B3

C550

C6

F2

R557

F2

B5

C555

F2

C2

R560

G2

D3

C557

E2

C5

R562

G2

D2

C564

G3

D2

R564

G2

D2

C566

G3

E2

R566

G3

D4

C580

H3

D2

R568

F3

E2

C598

J4

E5

R570

F3

E3

C610

J4

D5

R572

F3

D3

C620

J5

D5

R574

G3

E2

C640

G6

D3

R576

G2

D3

R578

H2

D3

CR530

C3

B3

R579

J2

C2

CR542

B5

B5

R580

H2

D3

CR550

C7

B4

R590

J3

E3

CR555

F1

C3

R592

H3

E3

CR557

E2

C4

R594

H4

E3

CR566

G3

D4

R596

H4

E4

CR576

H2

D3

R598

H4

E4

CR580

H3

D2

R610

J4

E5

CR640

H7

B5

R611

G4

D6

R612

J5

E5

Q520

B4

B3

R614

G5

C6

Q530

C3

A3

R615

G5

D6

Q550

C7

A3

R617

G5

C6

Q566

G3

D3

R620

H5

E4

Q576

H2

D3

R624

H6

E5

Q580

H3

C3

R626

H6

E5

Q590

J4

E3

R628

J6

E4

Q592

H4

E3

R630

J6

E5

Q610

J5

D4

R640

J7

D3

Q620

H6

E5

R642

H7

C4

Q622

J6

E4

R644

H7

D4

Q642

H7

C4

R646

H7

D4

Q646

H7

C4

R648

G7

D5

R650

F7

D5

R500

E2

B5

R652

F7

D5

R510

B3

B3

R656

F7

D4

R512

B3

B3

R658

F7

D4

R514

B3

B3

R660

F8

D4

R516

C4

B2

R518

B3

A1

U610A

G7

D5

R520

B4

B1

U610B

H5

D5

R522

B4

B1

R528

C4

B4

VR520

C4

B2

R530

C3

B4

VR534

D4

D2

R532

D3

B4

VR542

B5

B5

R534

D4

D1

VR550

C6

B4

R540

B5

A5

VR610

G4

C6

R542

B5

B5

VR646

G7

D4

R545

B6

B3

VR650

F7

D5

P/0 A1 ASSY also shown on oS & /z\

1

8

COMPONENT NUMBER EXAMPLE

+33.5Y «

PG505

l5S3-]fo
R.EV E JW( V3SI

B

H

K

1

>

3N

8

COMPONENT NUMBER EXAMPLE

Component Number
A23 A2R1234

Assembly
Number

Subassembly
Number (if used)

Chassis-mounted components have no Assembly Numbei
prefix— see end of Replaceable Electrical Parts Lst.

+33.5Y f

PG505

REV E JKM \9SI

POWER. SUPPLY <|>

Setion 9— PG 505

REPLACEABLE
MECHANICAL PARTS

PARTS ORDERING INFORMATION

Replacement parts are available from or through your local
Tektronix, Inc. Field Office or representative.

Changes to Tektronix instruments are sometimes made to
accommodate improved components as they become available,
and to give you the benefit of the latest circuit improvements
developed in our engineering department. It is therefore
important, when ordering parts, to include the following
information in your order: Part number, instrument type or
number, serial number, and modification number if applicable.

If a part you have ordered has been replaced with a new or
improved part, your local Tektronix, Inc. Field Office or
representative will contact you concerning any change in part
number.

Change information, if any, is located at the rear of this
manual.

SPECIAL NOTES AND SYMBOLS

XO0O Part first added at this serial number
00X Part removed after this serial number

FIGURE AND INDEX NUMBERS

Items in this section are referenced by figure and index
numbers to the illustrations.

INDENTATION SYSTEM

This mechanical parts list is indented to indicate item
relationships. Following is an example of the indentation system
used in the description column.

7 2 3 4 5

Name & Description

Assembly and/or Component

Attaching parts for Assembly and/or Component

Detail Part of Assembly and/or Component
Attaching parts for Detail Part

Parts of Detail Part

Attaching parts for Parts of Detail Part

Attaching Parts always appear in the same indentation as
the item it mounts, while the detail parts are indented to the right.
Indented items are part of, and included with, the next higher
indentation. The separation symbol — * — indicates the end of
attaching parts.

Attaching parts must be purchased separately, unless otherwise
specified.

ITEM NAME

In the Parts List, an Item Name is separated from the
description by a colon (:). Because of space limitations, an Item
Name may sometimes appear as incomplete. For further Item
Name identification, the U.S. Federal Cataloging Handbook H6-1
can be utilized where possible.

ABBREVIATIONS

INCH

ELCTRN

ELECTRON

IN

#

NUMBER SIZE

ELEC

ELECTRICAL

INCAND

ACTR

ACTUATOR

ELCTLT

ELECTROLYTIC

INSUL

ADPTR

ADAPTER

ELEM

ELEMENT

INTL

ALIGN

ALIGNMENT

EPL

ELECTRICAL PARTS LIST

LPHLDR

AL

ALUMINUM

EQPT

EQUIPMENT

MACH

ASSEM

ASSEMBLED

EXT

EXTERNAL

MECH

ASSY

ASSEMBLY

FIL

FILLISTER HEAD

MTG

ATTEN

ATTENUATOR

FLEX

FLEXIBLE

NIP

AWG

AMERICAN WIRE GAGE

FLH

FLAT HEAD

NON WIRE

BD

BOARD

FLTR

FILTER

OBD

BRKT

BRACKET

FR

FRAME or FRONT

OD

BRS

BRASS

FSTNR

FASTENER

OVH

BRZ

BRONZE

FT

FOOT

PH BRZ

BSHG

BUSHING

FXD

FIXED

PL

CAB

CABINET

GSKT

GASKET

PLSTC

CAP

CAPACITOR

HDL

HANDLE

PN

CER

CERAMIC

HEX

HEXAGON

PNH

CHAS

CHASSIS

HEX HD

HEXAGONAL HEAD

PWR

CKT

CIRCUIT

HEX SOC

HEXAGONAL SOCKET

RCPT

COMP

COMPOSITION

HLCPS

HELICAL COMPRESSION

RES

CONN

CONNECTOR

HLEXT

HELICAL EXTENSION

RGD

COV

COVER

HV

HIGH VOLTAGE

RLF

CPLG

COUPLING

IC

INTEGRATED CIRCUIT

RTNR

CRT

CATHODE RAY TUBE

ID

INSIDE DIAMETER

SCH

DEG

DEGREE

IDENT

IDENTIFICATION

SCOPE

DWR

DRAWER

IMPLR

IMPELLER

SCR

INCH

INCANDESCENT

INSULATOR

INTERNAL

LAMPHOLDER

MACHINE

MECHANICAL

MOUNTING

NIPPLE

NOT WIRE WOUND

ORDER BY DESCRIPTION

OUTSIDE DIAMETER

OVAL HEAD

PHOSPHOR BRONZE

PLAIN or PLATE

PLASTIC

PART NUMBER

PAN HEAD

POWER

RECEPTACLE

RESISTOR

RIGID

RELIEF

RETAINER

SOCKET HEAD

OSCILLOSCOPE

SCREW

SE

SINGLE END

SECT

SECTION

SEMICOND SEMICONDUCTOR

SHLD

SHIELD

SHLDR

SHOULDERED

SKT

SOCKET

SL

SLIDE

SLFLKG

SELF-LOCKING

SLVG

SLEEVING

SPR

SPRING

SO

SQUARE

SST

STAINLESS STEEL

STL

STEEL

SW

SWITCH

T

TUBE

TERM

TERMINAL

THD

THREAD

THK

THICK

TNSN

TENSION

TPG

TAPPING

TRH

TRUSS HEAD

V

VOLTAGE

VAR

VARIABLE

W/

WITH

WSHR

WASHER

XFMR

TRANSFORMER

XSTR

TRANSISTOR

@ JAN 1981

9-1

Replaceable Mechanical Parts — PG 505

CR0S3 INDEX— MFR. CODE NUMBER TO MANUFACTURER

Mfr. Code

Manufacturer

Address

City, State, Zip

OOOCY NORTHWEST FASTENER SALES, INC.

05820 WAKEFIELD ENGINEERING, INC.

08261 SPECTRA-STRIP CORP.

13511 AMPHENOL CARDRE DIV., BUNKER RAMO CORP.

45722 USM CORP., PARKER-KALON FASTENER DIV.

71785 TRW, CINCH CONNECTORS

73743 FISCHER SPECIAL MFG. CO.

73803 TEXAS INSTRUMENTS, INC., METALLURGICAL

MATERIALS DIV.

78189 ILLINOIS TOOL WORKS, INC.

SHAKEPROOF DIVISION

79807 WROUGHT WASHER MFG. CO.

80009 TEKTRONIX, INC.

83385 CENTRAL SCREW CO.

86928 SEASTROM MFG. COMPANY, INC.

91836 KINGS ELECTRONICS CO., INC.

93907 TEXTRON INC. CAMCAR DIV

97464 INDUSTRIAL RETAINING RING CO.

7923 SW CIRRUS DRIVE
AUDUBON ROAD
7100 LAMPSON AVE.

1501 MORSE AVENUE
446 MORGAN ST.

34 FOREST STREET

ST. CHARLES ROAD
2100 S. BAY ST.
P BOX 500
2530 CRESCENT DR.
701 SONORA AVENUE
40 MARBLEDALE ROAD
600 18TH AVE
57 CORDIER ST.

BEAVERTON, OR 97005
WAKEFIELD, MA 01880
GARDEN GROVE, CA 92642
LOS GATOS, CA 95030
CAMPBELLS VILLE, KY 42718
ELK GROVE VILLAGE, IL 60007
CINCINNATI, OH 45206

ATTLEBORO, MA 02703

ELGIN, IL 60120
MILWAUKEE, WI 53207
BEAVERTON, OR 9707 7
BROADVIEW, IL 60153
GLENDALE, CA 91201
TUCKAHOE, NY 10707
ROCKFORD, IL 61101
IRVINGTON, NJ 07111

9-2

REV. AUG 1981

Replaceable Mechanical Parts— PG 505

Fig. &

Index

Tektronix

Serial/Model No.

No.

Part No.

Eff

Dscont

Qty

1-1

337-

1399-

00

2

-2

366-

0494-

00

6

213-

0153-

00

6

-3

366-

1201-

00

1

213-

0153-

00

1

-4

366-

1202-

00

1

213-

0153-

00

1

-5

366-

1257-

51

1

-6

366-

1257-

60

1

-7

366-

1257-

50

1

-8

366-

1257-

49

1

-9

366-

1489-

56

1

-10

426-

0681-

00

5

-11

214-

1840-

00

B010100

B021999X

1

-12

366-

1422-

01

B010100

B021999

1

366-

1690-

00

B022000

1

-13
-14

1

1

210-

-0583-

-00

-15

210-

■0940-

■00

1

-16
-17

1
1

210-

-0583-

-00

-18

210-

-0940-

-00

1

-19

1

-20

210-

-0583-

-00

1

-21

210-

-0940-

-00

1

-22

1

-23

210-

-0583-

-00

1

-24

210-

-0940

-00

1

-25

210-

-0046-

-00

1

-26
-27

1
1

210

-0583

-00

-28

210

-0940

-00

1

-29
-30

1

1

210

-0583

-00

-31

210

-0940

-00

1

-32

131

-0955

-00

2

-33

131

-0274

-00

1

-34

333

-1768

-00

1

-35

378

-0703

-00

1

-36

200

-0935

-00

1

-37

378

-0602

-00

1

-38

352

-0157

-00

1

-39

214

-1513

-01

B010100

B021999

1

105

-0719

-00

B022000

1

-40

213

-0254

-00

1

105

-0718

-00

XB022000

B022369

1

105

-0718

-01

B022370

1

-41

386

-2643

-00

1

12 3 4 5

Name & Description

Mfr
Code

Mfr Part Number

-42 213-0229-00 B010100 B022439
213-0123-00 B022440

SHLD .ELECTRICAL : SIDE
KNOB:GRAY WITH SETSCREW

. SETSCREW:5-40 X 0.125, STL BK OXD.HEX SKT
KNOB: GRAY

. SETSCREW: 5-40 X 0.1 25, STL BK OXD.HEX SKT
KNOB: GRAY

. SETSCREW:5-40 X 0.125, STL BK OXD.HEX SKT
PUSH BUTTON : GRAY— 1US
PUSH BUTTON : GRAY— 10US
PUSH BUTTON : GRAY— 100US
PUSH BUTTON: GRAY— IMS
PUSH BUTTON: GRAY— + PULSE
FR.PUSH BUTTON: GRAY PLASTIC
PIN, KNOB SECRG:0.094 OD X 0.120 INCH LONG
KNOB: LATCH

KNOB:SIL GY.0.53 X0.23 X 1.059
RESISTOR, VAR: (SEE R130 REPL)

(ATTACHING PARTS)
NUT, PLAIN, HEX. :0. 25-32 X 0.312 INCH.BRS
WASHER, FLAT: 0.25 ID X 0.375 INCH OD.STL

RESISTOR, VAR: (SEE R230 REPL)

(ATTACHING PARTS)
NUT, PLAIN, HEX.: 0.25-32 X 0.312 INCH.BRS
WASHER, FLAT: 0.25 ID X 0.375 INCH OD.STL

RESISTOR,VAR:(SEE R110 REPL)

(ATTACHING PARTS)
NUT, PLAIN, HEX. :0. 25-32 X 0.312 INCH.BRS
WASHER, FLAT: 0.2 5 ID X 0.375 INCH OD.STL

RESISTOR, VAR: (SEE R185 REPL)

(ATTACHING PARTS)
NUT, PLAIN, HEX.: 0.25-32 X 0.312 INCH.BRS
WASHER, FLAT: 0.25 ID X 0.375 INCH OD.STL
WASHER, LOCK: 0.261 ID, INTL, 0.018 THK.BRS

RESISTOR, VAR: (SEE R240 REPL)

(ATTACHING PARTS)
NUT, PLAIN, HEX. :0. 25-32 X 0.312 INCH,BRS
WASHER, FLAT:0. 25 ID X 0.375 INCH OD.STL

RESISTOR, VAR: (SEE R270 REPL)

(ATTACHING PARTS)
NUT, PLAIN, HEX. :0. 25-32 X 0.312 INCH.BRS
WASHER, FLAT: 0.2 5 ID X 0.375 INCH OD.STL

CONN , RCPT , ELEC : BNC , FEMALE

CONNECTOR , RCPT , : BNC

PANEL, FRONT :PG505

LENS , LIGHT : HOLDER , CLEAR

BASE,LAMPHOLDER:0.29 OD X 0.19 CASE

LENS, LIGHT: GREEN

LAMPHOLDER: WHITE PLASTIC

LCH, PLUG-IN RET:

LATCH , RETAINING : PLUG- IN

(ATTACHING PARTS)
SCREW,TPG,TF:2-32 X 0.250,100 DEG.FLH

BAR, LATCH RLSE

BAR, LATCH RLSE

SUBPANEL, FRONT

(ATTACHING PARTS)
4 SCR.TPG.THD FOR:6-20 X0.375"100 DEG.FLH STL
4 SCREW,TPG,TF:6-32 X 0.375.SPCL TYPE.FLH

80009
80009
OOOCY
80009
OOOCY
80009
OOOCY
80009
80009
80009
80009
80009
80009
80009
80009
80009

337-1399-00

366-0494-00

OBD

366-1201-00

OBD

366-1202-00

OBD

366-1257-51

366-1257-60

366-1257-50

366-1257-49

366-1489-56

426-0681-00

214-1840-00

366-1422-01

366-1690-00

73743 2X20317-402
79807 OBD

73743 2X20317-402
79807 OBD

73743 2X20317-402
79807 OBD

73743 2X20317-402

79807 OBD

78189 1214-05-00-0541C

73743 2X20317-402
79807 OBD

73743

2X20317-402

79807

OBD

13511

31-279

91836

KC79-67

80009

333-1768-00

80009

378-0703-00

80009

200-0935-00

80009

378-0602-00

80009

352-0157-00

80009

214-1513-01

80009

105-0719-00

45722 OBD

80009
80009
80009

105-0718-00
105-0718-01
386-2643-00

93907 OBD
93907 OBD

REV DEC 1981

9-3

Replaceable Mechanical Parts — PG 505

Fig. &
Index
No.

Tektronix Serial/Model No.
Part No. Eff Dscont

Qty 12 3 4 5

Name & Description

Mfr
Code

Mfr Part Number

1-43
-44

-45

-46
-47
-48

-49
-50
-51
-52

-53
-54
-55
-56

-57

-58
-59
-60

-61
-62
-63
-64

-65
-66

-67

-68

337-1848-00
384-1099-00
672-0431-00

213-0146-00
211-0507-00
210-0202-00
210-0407-00

131-0604-00
136-0269-02
136-0235-00
136-0514-00
214-0579-00
214-0498-00

211-0097-00
210-0406-00
210-1122-00
210-0921-00

211-0097-00
210-0406-00
210-1122-00

361-0384-00

361-0383-00
198-2193-00
175-0825-00
175-0828-00
175-0830-00
263-1015-00

211-0116-00
211-0292-00

B010100 B023139
B023140

-69 200-1623-00

-70 211-0008-00
-71 210-0004-00

-72 354-0391-00

-73 401-0081-02

-74 210-0406-00

-75 214-1139-03

-76 214-1139-02

-77 214-1139-00

-78 214-1127-00

-79 105-0514-00

-80 105-0515-00

-81 401-0115-00

386-3657-00 XB020670 B022529
386-3657-01 B022530
210-1270-00 XB020670

-82 426-0724-04

-83 214-1061-00

-84 426-0725-05

FT

FT

FT

1

6
6

6

6

2
2
12
2
1
1
4
1
1
1
2
2
2
1
1
1

SHLD, ELECTRICAL: FRONT SUBPANEL

EXTENSION SHAFT: PUSH BUTTON, 1.54 INCH LONG

CKT BOARD ASSY: PULSE GEN

(ATTACHING PARTS)
SCR.TPG.THD FOR:6-20 X 0.313 INCH.PNH STL
SCREW,MACHINE:6-32 X 0.312 INCH.PNH STL
TERMINAL, LUG:0. 146 ID, LOCKING, BRZ TINNED
NUT, PLAIN, HEX. :6-32 X 0.25 INCH.BRS

CKT BOARD ASSY W/CAM SWITCH INCLUDES:
CKT BOARD ASSY:— MAIN( SEE Al REPL)
. CONTACT,ELEC:CKT BD SW,SPR,CU BE
. SKT.PL-IN ELEK:MICROCIRCUIT,14 DIP, LOW CLE
. SOCKET, PLUG- IN: 6 CONTACT , ROUND
. SKT.PL-IN ELEC:MICR0CIRCUIT,8 DIP
. TERM, TEST POINT: BRS CD PL
. HEAT SINK,XSTR:T0-18,AL BLACK ANODIZED
TRANSISTOR: (SEE Q580 REPL)

(ATTACHING PARTS)
. SCREW, MACHINE :4-40 X 0.312 INCH.PNH STL
. NUT, PLAIN, HEX. :4-40 X 0.188 INCH.BRS
. WASHER, LOCK: 0.1 2 ID, DISHED, 0.025 THK
. WASHER, MICA: 0.50 X 0.141 X0.005 INCH THK

. TRANSISTOR: (SEE Q642 REPL)

(ATTACHING PARTS)
. SCREW, MACHINE :4-40 X 0.312 INCH.PNH STL
. NUT, PLAIN, HEX. :4-40 X 0.188 INCH.BRS
. WASHER, LOCK: 0.12 ID, DISHED, 0.025 THK

. SWITCH, PUSH: (SEE S290 REPL)

. SPACER, PB SW:0.133 INCH LONG

. SWITCH, PUSH: (SEE S250 REPL)

. SPACER, PB SW:CHARC0AL,0.33 INCH LONG

. WIRE SET.ELEC:

. . WIRE, ELECTRICAL: 2 WIRE RIBBON

. . WIRE, ELECTRICAL: 5 WIRE RIBBON

. . WIRE, ELECTRICAL: 7 WIRE RIBBON

SW CAM ACTR AS: PERIOD

(ATTACHING PARTS)
SCR.ASSEM WSHR:4-40 X 0.312 INCH.PNH BRS
SCR.ASSEM WSHR:4-40 X 0.29, BRS NI PL

ACTUATOR ASSY INCLUDES:

. COVER, CAM SW:10 & 11 ELEMENTS

(ATTACHING PARTS)
. SCREW, MACHINE :4-40 X 0.25 INCH.PNH STL
. WASHER, LOCK: #4 INTL,0.015THK,STL CD PL

. RING, RETAINING :0.395"FREE ID X 0.025" STL

. BEARING, CAM SW: FRONT

. NUT, PLAIN, HEX. :4-40 X 0.188

. SPRING, FLAT: RED COLORED

. SPRING, FLAT :GREEN COLORED

. SPRING, FLAT: 0.88 5 X 0.156CU

. ROLLER, DETENT:0. 125 DIA X 0.

. ACTUATOR, CAM SW: PULSE PERIOD

. ACTUATOR, CAM SW: PULSE DURATION

. BEARING, CAM SW: CENTER
SUPPORT, PLUG-IN:
SUPPORT, PLUG IN:

WASHER, FLAT: 0.141 ID X 0.04 THK.AL
FR SECT, PLUG-IN: BOTTOM
SPRING , GROUND : FLAT
FR SECT, PLUG-IN: TOP

INCH.BRS

BE GLD CLR
.125, SST

80009 337-1848-00

80009 384-1099-00

80009 672-0431-00

83385 OBD

83385 OBD

78189 2104-06-00-2520N

73743 3038-0228-402

80009

131-0604-00

73803

CS9002-14

71785

133-96-12-062

73803

CS9002-8

80009

214-0579-00

05820

201-AB

83385

OBD

73743

12161-50

86928

OBD

80009

210-0921-00

83385

OBD

73743

12161-50

86928

OBD

80009

361-0384-00

80009

361-0383-00

80009

198-2193-00

80009

175-0825-00

08261

SS-0526-710610C

08261

SS-0726-710610C

80009

263-1015-00

83385

OBD

78189

OBD

80009 200-1623-00

83385 OBD
78189 OBD

97464
80009
73743
80009
80009
80009
80009
80009
80009
80009
80009
93907
80009
80009
80009
80009

3100-43-CD

401-0081-02

12161-50

214-1139-03

214-1139-02

214-1139-00

214-1127-00

105-0514-00

105-0515-00

401-0115-00

386-3657-00

OBD

210-1270-00

426-0724-04

214-1061-00

426-0725-05

9-4

REV DEC 1981

Fig. &

Index Tektronix Serial/Model No. Mfr

No. Part No. Eff Dscont Qty 12 3 4 5 Name & Description Code Mfr Part Number

ACCESSORIES
070-1583-01 1 MANUAL, TECH: SERVICE 80009 070-1583-01

REV C JAN 1981 PG 505